plants

.gitignore

@@ -2,3 +2,6 @@
 /bin/
 /web/output/
 imgui.ini
+#prototyping in python below
+*.py
+/venv/

.gitmodules

@@ -4,3 +4,7 @@
 [submodule "stb"]
 	path = stb
 	url = https://github.com/nothings/stb
+    
+[submodule "eigen"]
+	path = eigen
+	url = https://gitlab.com/libeigen/eigen.git

h.cpp

@@ -0,0 +1,114 @@
+#include "util/grid/gridtest.hpp"
+#include <random>
+#include <memory>
+#include "util/output/bmpwriter.hpp"
+
+// Function to create a randomized voxel grid
+std::unique_ptr<VoxelGrid> createRandomizedGrid(int width, int height, int depth, float density = 0.2f) {
+    auto grid = std::make_unique<VoxelGrid>(width, height, depth);
+    
+    // Set up random number generation
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_real_distribution<float> dist(0.0f, 1.0f);
+    std::uniform_real_distribution<float> colorDist(0.2f, 1.0f);
+    
+    // Fill grid with random active voxels
+    for (int x = 0; x < width; x++) {
+        for (int y = 0; y < height; y++) {
+            for (int z = 0; z < depth; z++) {
+                if (dist(gen) < density) {
+                    // Random color
+                    Vec3f color(colorDist(gen), colorDist(gen), colorDist(gen));
+                    grid->set(x, y, z, true, color);
+                }
+            }
+        }
+    }
+    
+    return grid;
+}
+
+// Create a simple structure to hold camera position and orientation
+struct CameraPose {
+    Vec3f position;
+    Vec3f target;
+    Vec3f up;
+};
+
+int main() {
+    // Create a randomized voxel grid (15x15x15 with 20% density)
+    const int gridSize = 128;
+    auto grid = createRandomizedGrid(gridSize, gridSize, gridSize, 0.2f);
+    
+    // Create a renderer with our custom grid
+    VoxelRenderer renderer;
+    renderer.getGrid() = *grid; // Replace the default test pattern
+    
+    // Define 6 camera positions (looking at the center from each axis direction)
+    std::vector<CameraPose> cameraPoses = {
+        // Front (looking along negative Z)
+        {Vec3f(0, 0, -gridSize * 2), Vec3f(0, 0, 0), Vec3f(0, 1, 0)},
+        
+        // Back (looking along positive Z)
+        {Vec3f(0, 0, gridSize * 2), Vec3f(0, 0, 0), Vec3f(0, 1, 0)},
+        
+        // Right (looking along positive X)
+        {Vec3f(gridSize * 2, 0, 0), Vec3f(0, 0, 0), Vec3f(0, 1, 0)},
+        
+        // Left (looking along negative X)
+        {Vec3f(-gridSize * 2, 0, 0), Vec3f(0, 0, 0), Vec3f(0, 1, 0)},
+        
+        // Top (looking along negative Y)
+        {Vec3f(0, gridSize * 2, 0), Vec3f(0, 0, 0), Vec3f(0, 0, -1)},
+        
+        // Bottom (looking along positive Y)
+        {Vec3f(0, -gridSize * 2, 0), Vec3f(0, 0, 0), Vec3f(0, 0, 1)}
+    };
+    
+    // Render settings
+    const int screenWidth = 400;
+    const int screenHeight = 400;
+    
+    // Vector to store all frames
+    std::vector<frame> frames;
+    
+    std::cout << "Rendering voxel grid from 6 directions..." << std::endl;
+    
+    // Render from each camera position
+    for (size_t i = 0; i < cameraPoses.size(); i++) {
+        auto& pose = cameraPoses[i];
+        
+        // Update camera position
+        renderer.getCamera().position = pose.position;
+        
+        // Calculate forward direction (from position to target)
+        Vec3f forward = (pose.target - pose.position).normalized();
+        
+        // Set camera orientation
+        renderer.getCamera().forward = forward;
+        renderer.getCamera().up = pose.up;
+        
+        std::cout << "Rendering view " << (i+1) << "/6 from position ("
+                  << pose.position.x << ", " << pose.position.y << ", " << pose.position.z << ")" << std::endl;
+        
+        // Render and add to frames vector
+        frames.push_back(renderer.renderToFrame(screenWidth, screenHeight));
+    }
+    
+    // Print frame information
+    std::cout << "\nRendering complete!" << std::endl;
+    std::cout << "Number of frames created: " << frames.size() << std::endl;
+    
+    for (size_t i = 0; i < frames.size(); i++) {
+        std::cout << "Frame " << (i+1) << ": " << frames[i] << std::endl;
+    }
+
+    // Optional: Save frames to files if your frame class supports it
+    for (size_t i = 0; i < frames.size(); i++) {
+        std::string filename = "output/voxel_view_" + std::to_string(i+1) + ".bmp";
+        BMPWriter::saveBMP(filename, frames[i]);
+    }
+    
+    return 0;
+}

makefile

@@ -7,16 +7,34 @@ STB_DIR := ./stb
 
 # Compiler and flags
 CXX := g++
-CXXFLAGS = -std=c++23 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(STB_DIR)
+BASE_CXXFLAGS = -std=c++23 -O3 -fopenmp -march=native -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(STB_DIR) -g
-CXXFLAGS += `pkg-config --cflags glfw3`
+BASE_CXXFLAGS += `pkg-config --cflags glfw3`
-CFLAGS = $(CXXFLAGS)
+CFLAGS = $(BASE_CXXFLAGS)
 LDFLAGS := -L./imgui -limgui -lGL
 LINUX_GL_LIBS = -lGL -ltbb
 PKG_FLAGS := $(LINUX_GL_LIBS) `pkg-config --static --cflags --libs glfw3`
-CXXFLAGS += $(PKG_FLAGS)
+BASE_CXXFLAGS += $(PKG_FLAGS)
+
+# Test if AVX is supported (run once, store result)
+AVX_SUPPORTED := $(shell echo "int main(){}" | $(CXX) -mavx -x c++ -o /dev/null - 2>/dev/null && echo "yes" || echo "no")
+SSE2_SUPPORTED := $(shell echo "int main(){}" | $(CXX) -msse2 -x c++ -o /dev/null - 2>/dev/null && echo "yes" || echo "no")
+
+# Set SIMD flags based on detection
+ifeq ($(AVX_SUPPORTED),yes)
+    SIMD_CXXFLAGS = -mavx2 -mfma -DAVX
+    $(info Building with AVX support)
+else ifeq ($(SSE2_SUPPORTED),yes)
+    SIMD_CXXFLAGS = -msse2 -DSSE
+    $(info Building with SSE2 support (no AVX))
+else
+    SIMD_CXXFLAGS = -DNO_SIMD
+    $(warning No SIMD support detected, building scalar version)
+endif
+
+CXXFLAGS = $(BASE_CXXFLAGS) $(SIMD_CXXFLAGS)
 
 # Source files
-SRC := $(SRC_DIR)/g3chromatic.cpp
+SRC := $(SRC_DIR)/ptest.cpp
 #SRC := $(SRC_DIR)/g2chromatic2.cpp
 SRC += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
 SRC += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
@@ -43,7 +61,7 @@ $(OBJ_DIR)/%.o: $(STB_DIR)/%.cpp
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
 
 all: $(EXE)
-	@echo Build complete for $(ECHO_MESSAGE)
+	@echo "Build complete for $(UNAME_S)"
 
 $(EXE): $(OBJS)
 	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)

readme.md

@@ -0,0 +1 @@
+Thanks to Treexy, Amanatides, Woo, Occam, Incf, and so on.

tests/fluidsim.cpp

@@ -0,0 +1,170 @@
+#ifndef FLUIDSIM_CPP
+#define FLUIDSIM_CPP
+
+#include "../util/sim/fluidsim.hpp"
+#include "../util/timing_decorator.cpp"
+#include "../util/output/bmpwriter.hpp"
+#include "../util/output/aviwriter.hpp"
+
+#include "../imgui/imgui.h"
+#include "../imgui/backends/imgui_impl_glfw.h"
+#include "../imgui/backends/imgui_impl_opengl3.h"
+#include <GLFW/glfw3.h>
+#include "../stb/stb_image.h"
+
+
+struct fluidSimPreviewConfig {
+    float lodDist = 4096.0f;
+    float lodDropoff = 0.001f;
+    bool slowRender = false;
+    int outWidth = 1024;
+    int outHeight = 1024;
+    int rayCount = 1;
+    int reflectCount = 1;
+    bool globalIllumination = false;
+    bool useLod = true;
+};
+
+class FluidSimUI {
+private:
+    fluidSim sim;
+    fluidParticle baseParticle;
+    fluidSimPreviewConfig viewConfig;
+    Camera cam;
+    
+    // UI State
+    bool isRunning = false;
+    int particlesToSpawnPerFrame = 2;
+    int totalParticleCap = 5000;
+    
+    // Texture Management
+    GLuint textu = 0;
+    std::mutex PreviewMutex;
+    bool updatePreview = false;
+    bool textureInitialized = false;
+    frame currentPreviewFrame;
+
+public:
+    FluidSimUI() {
+        cam.origin = Eigen::Vector3f(0.0f, 4000.0f, -5800.0f);
+        cam.direction = (Eigen::Vector3f(0.0f, 0.0f, 0.0f) - cam.origin).normalized();
+        cam.up = Eigen::Vector3f(0.0f, 1.0f, 0.0f);
+        cam.fov = 60.0f;
+
+        baseParticle.velocity = Eigen::Vector3f::Zero();
+        baseParticle.acceleration = Eigen::Vector3f::Zero();
+        baseParticle.forceAccumulator = Eigen::Vector3f::Zero();
+        baseParticle.pressure = 0.0f;
+        baseParticle.viscosity = 8.0f;
+        baseParticle.restitution = 200.0f;
+        
+        sim.grid.setLODFalloff(viewConfig.lodDropoff);
+        sim.grid.setLODMinDistance(viewConfig.lodDist);
+    }
+
+    ~FluidSimUI() {
+        if (textu != 0) {
+            glDeleteTextures(1, &textu);
+        }
+    }
+
+    void update() {
+        if (isRunning) {
+            if (sim.getParticleCount() < (size_t)totalParticleCap) {
+                sim.spawnParticles(baseParticle, particlesToSpawnPerFrame);
+            }
+            sim.applyPhysics();
+        }
+    }
+
+    void renderUI() {
+        ImGui::Begin("Fluid Simulation Control");
+
+        if (ImGui::Button(isRunning ? "Pause" : "Start")) {
+            isRunning = !isRunning;
+        }
+        ImGui::SameLine();
+        if (ImGui::Button("Step")) {
+            sim.applyPhysics();
+        }
+        ImGui::SameLine();
+        if (ImGui::Button("Reset")) {
+            std::lock_guard<std::mutex> lock(PreviewMutex);
+            sim.reset();
+        }
+
+        ImGui::Separator();
+        ImGui::Text("Particle Management");
+        ImGui::DragInt("Spawn Rate (per frame)", &particlesToSpawnPerFrame, 1, 0, 100);
+        ImGui::DragInt("Max Particles", &totalParticleCap, 10, 0, 50000);
+        ImGui::Text("Current Particles: %zu", sim.getParticleCount());
+
+        if (ImGui::CollapsingHeader("Physics Parameters")) {
+            ImGui::DragFloat("Smoothing Radius", &sim.config.SMOOTHING_RADIUS, 1.0f, 100.0f, 5000.0f);
+            ImGui::DragFloat("Rest Density", &sim.config.REST_DENSITY, 0.00001f, 0.0f, 0.01f, "%.6f");
+            ImGui::DragFloat("Timestep", &sim.config.TIMESTEP, 0.001f, 0.001f, 0.1f);
+            ImGui::DragFloat("Gravity (Attraction)", &sim.config.G_ATTRACTION, 0.1f, 0.0f, 500.0f);
+            
+            ImGui::Text("Base Particle Properties");
+            ImGui::DragFloat("Viscosity", &baseParticle.viscosity, 0.1f, 0.0f, 50.0f);
+            ImGui::DragFloat("Restitution", &baseParticle.restitution, 1.0f, 0.0f, 1000.0f);
+        }
+
+        if (ImGui::CollapsingHeader("View Settings")) {
+            ImGui::DragFloat("Camera FOV", &cam.fov, 1.0f, 10.0f, 170.0f);
+            
+            float camPos[3] = {cam.origin.x(), cam.origin.y(), cam.origin.z()};
+            if(ImGui::DragFloat3("Camera Pos", camPos, 10.0f)) {
+                cam.origin = Eigen::Vector3f(camPos[0], camPos[1], camPos[2]);
+                cam.direction = (Eigen::Vector3f(0.0f, 0.0f, 0.0f) - cam.origin).normalized();
+            }
+
+            ImGui::Checkbox("High Quality Render", &viewConfig.slowRender);
+            if (viewConfig.slowRender) {
+                ImGui::DragInt("Ray Count", &viewConfig.rayCount, 1, 1, 16);
+                ImGui::Checkbox("Global Illumination", &viewConfig.globalIllumination);
+            }
+        }
+
+        updatePreviewTexture();
+        
+        if (textureInitialized) {
+            float aspect = (float)currentPreviewFrame.getWidth() / (float)currentPreviewFrame.getHeight();
+            float availWidth = ImGui::GetContentRegionAvail().x;
+            ImGui::Image((void*)(intptr_t)textu, ImVec2(availWidth, availWidth / aspect));
+        }
+
+        ImGui::End();
+    }
+
+private:
+    void updatePreviewTexture() {
+        std::lock_guard<std::mutex> lock(PreviewMutex);
+        updatePreview = true;
+        
+        sim.grid.setLODMinDistance(viewConfig.lodDist);
+        sim.grid.setLODFalloff(viewConfig.lodDropoff);
+        
+        if (viewConfig.slowRender) {
+            currentPreviewFrame = sim.grid.renderFrame(cam, viewConfig.outWidth, viewConfig.outHeight, frame::colormap::RGB, viewConfig.rayCount, viewConfig.reflectCount, viewConfig.globalIllumination, viewConfig.useLod);
+        } else {
+            currentPreviewFrame = sim.grid.fastRenderFrame(cam, viewConfig.outWidth, viewConfig.outHeight, frame::colormap::RGB);
+        }
+        
+        if (textu == 0) {
+            glGenTextures(1, &textu);
+        }
+        glBindTexture(GL_TEXTURE_2D, textu);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+        
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
+                     0, GL_RGB, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
+        
+        updatePreview = false;
+        textureInitialized = true;
+    }
+};
+
+#endif

tests/g2chromatic.cpp

@@ -1,221 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int numSeeds = 1;
-};
-
-const float PI4 = M_PI / 4.0f;
-const float PI43 = PI4 * 3.0f;
-
-bool initializeGrid(Grid2& grid, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::cout << "Initializing grayscale grid..." << std::endl;
-    
-    for (int y = 1; y < config.height; ++y) {
-        for (int x = 1; x < config.width; ++x) {
-            float gradient = (x + y) / float(config.width + config.height - 2);
-            Vec2 position(static_cast<float>(x), static_cast<float>(y));
-            Vec4 color(gradient, gradient, gradient, 1.0f);
-            grid.addObject(position, color, 1.0f);
-        }
-    }
-    
-    std::cout << "Grayscale grid created with " << config.width * config.height << " objects" << std::endl;
-    return true;
-}
-
-std::pair<std::vector<Vec2>, std::vector<Vec4>> generateSeedPoints(const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-    
-    std::vector<Vec2> seedPoints;
-    std::vector<Vec4> seedColors;
-    
-    for (int i = 0; i < config.numSeeds; ++i) {
-        seedPoints.emplace_back(xDist(gen), yDist(gen));
-        seedColors.emplace_back(colorDist(gen), colorDist(gen), colorDist(gen), colorDist(gen));
-    }
-    
-    std::cout << "Generated " << config.numSeeds << " seed points for color propagation" << std::endl;
-    return {seedPoints, seedColors};
-}
-
-Vec4 calculateInfluencedColor(const Vec2& position, const Vec4& originalColor, float progress,
-                             const std::vector<Vec2>& seedPoints, const std::vector<Vec4>& seedColors,
-                             const AnimationConfig& config) {
-    //TIME_FUNCTION;
-    Vec4 newColor = originalColor;
-    
-    float maxDistance = std::max(config.width, config.height) * 0.6f;
-
-    for (int s = 0; s < config.numSeeds; ++s) {
-        float distance = position.distance(seedPoints[s]);
-        float influence = std::max(0.0f, 1.0f - (distance / maxDistance));
-        
-        Vec2 direction = position - seedPoints[s];
-        float angle = std::atan2(direction.y, direction.x);
-        auto SC = seedColors[s];
-        // applyDirectionalColorInfluence(newColor, seedColors[s], influence, progress, angle);
-        float absAngle = std::abs(angle);
-        if (absAngle < PI4) { // Right - affect alpha
-            newColor.a = std::fmod(newColor.a + SC.a * influence * progress, 1.0f);
-        } else if (absAngle > PI43) { // Left - affect blue
-            newColor.b = std::fmod(newColor.b + SC.b * influence * progress, 1.0f);
-        } else if (angle > 0) { // Below - affect green
-            newColor.g = std::fmod(newColor.g + SC.g * influence * progress, 1.0f);
-        } else { // Above - affect red
-            newColor.r = std::fmod(newColor.r + SC.r * influence * progress, 1.0f);
-        }
-    }
-    
-    return newColor.clampColor();
-}
-
-void updateColorsForFrame(Grid2& grid, float progress, const std::vector<Vec2>& seedPoints, 
-                         const std::vector<Vec4>& seedColors, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    
-    grid.bulkUpdateColors([&](size_t id, const Vec2& pos, const Vec4& currentColor) {
-        return calculateInfluencedColor(pos, currentColor, progress, seedPoints, seedColors, config);
-    });
-}
-
-std::vector<uint8_t> convertFrameToBGR(Grid2& grid, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    int frameWidth, frameHeight;
-    std::vector<int> bgrData;
-    grid.getGridRegionAsBGR(Vec2(0,0),Vec2(config.width,config.height), frameWidth, frameHeight, bgrData);
-    //grid.getGridRegionAsRGB(0.0f,0.0f,512.0f,512.0f,frameWidth,frameHeight,rgbData);
-    
-    std::vector<uint8_t> bgrFrame(frameWidth * frameHeight * 3);
-    #pragma omp parallel for
-    for (int i = 0; i < frameWidth * frameHeight; ++i) {
-        int r = std::clamp(bgrData[i * 3 + 2], 0, 255);
-        int g = std::clamp(bgrData[i * 3 + 1], 0, 255);
-        int b = std::clamp(bgrData[i * 3], 0, 255);
-        
-        bgrFrame[i * 3] = static_cast<uint8_t>(b);
-        bgrFrame[i * 3 + 1] = static_cast<uint8_t>(g);
-        bgrFrame[i * 3 + 2] = static_cast<uint8_t>(r);
-    }
-    
-    return bgrFrame;
-}
-
-bool validateFrameSize(const std::vector<uint8_t>& frame, const AnimationConfig& config) {
-    return frame.size() == config.width * config.height * 3;
-}
-
-std::vector<std::vector<uint8_t>> createAnimationFrames(Grid2& grid, 
-                                                       const std::vector<Vec2>& seedPoints,
-                                                       const std::vector<Vec4>& seedColors,
-                                                       const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::vector<std::vector<uint8_t>> frames;
-    
-    for (int frame = 0; frame < config.totalFrames; ++frame) {
-        std::cout << "Processing frame " << frame + 1 << "/" << config.totalFrames << std::endl;
-        
-        float progress = static_cast<float>(frame) / (config.totalFrames - 1);
-        updateColorsForFrame(grid, progress, seedPoints, seedColors, config);
-        
-        auto bgrFrame = convertFrameToBGR(grid, config);
-        
-        // if (!validateFrameSize(bgrFrame, config)) {
-        //     std::cerr << "ERROR: Frame size mismatch in frame " << frame << std::endl;
-        //     continue;
-        // }
-        
-        frames.push_back(bgrFrame);
-    }
-    
-    return frames;
-}
-
-void printSuccessMessage(const std::string& filename, 
-                        const std::vector<Vec2>& seedPoints,
-                        const std::vector<Vec4>& seedColors,
-                        const AnimationConfig& config) {
-    std::cout << "\nSuccessfully saved chromatic transformation animation to: " << filename << std::endl;
-    std::cout << "Video details:" << std::endl;
-    std::cout << "  - Dimensions: " << config.width << " x " << config.height << std::endl;
-    std::cout << "  - Frames: " << config.totalFrames << " (" 
-              << config.totalFrames/config.fps << " seconds at " << config.fps << "fps)" << std::endl;
-    std::cout << "  - Seed points: " << config.numSeeds << std::endl;
-    
-    std::cout << "\nSeed points used:" << std::endl;
-    for (int i = 0; i < config.numSeeds; ++i) {
-        std::cout << "  Seed " << i + 1 << ": Position " << seedPoints[i] 
-                  << ", Color " << seedColors[i].toColorString() << std::endl;
-    }
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-}
-
-void printErrorMessage(const std::vector<std::vector<uint8_t>>& frames, const AnimationConfig& config) {
-    std::cerr << "Failed to save AVI file!" << std::endl;
-    std::cerr << "Debug info:" << std::endl;
-    std::cerr << "  - Frames count: " << frames.size() << std::endl;
-    if (!frames.empty()) {
-        std::cerr << "  - First frame size: " << frames[0].size() << std::endl;
-        std::cerr << "  - Expected frame size: " << config.width * config.height * 3 << std::endl;
-    }
-    std::cerr << "  - Width: " << config.width << ", Height: " << config.height << std::endl;
-}
-
-bool saveAnimation(const std::vector<std::vector<uint8_t>>& frames, const std::vector<Vec2>& seedPoints, 
-                  const std::vector<Vec4>& seedColors, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    std::cout << "Attempting to save AVI file: " << filename << std::endl;
-    
-    bool success = AVIWriter::saveAVI(filename, frames, config.width, config.height, config.fps);
-    
-    if (success) {
-        printSuccessMessage(filename, seedPoints, seedColors, config);
-        return true;
-    } else {
-        printErrorMessage(frames, config);
-        return false;
-    }
-}
-
-int main() {
-    std::cout << "Creating chromatic transformation animation..." << std::endl;
-    
-    // Configuration
-    AnimationConfig config;
-    
-    // Initialize grid
-    Grid2 grid;
-    if (!initializeGrid(grid, config)) {
-        return 1;
-    }
-    
-    // Generate seed points
-    auto [seedPoints, seedColors] = generateSeedPoints(config);
-    
-    // Create animation frames
-    auto frames = createAnimationFrames(grid, seedPoints, seedColors, config);
-    
-    // Save animation
-    if (!saveAnimation(frames, seedPoints, seedColors, config)) {
-        return 1;
-    }
-    
-    return 0;
-}

tests/g2chromatic2.cpp

@@ -1,531 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-#include <unordered_set>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/output/bmpwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-#include "../imgui/imgui.h"
-#include "../imgui/backends/imgui_impl_glfw.h"
-#include "../imgui/backends/imgui_impl_opengl3.h"
-#include <GLFW/glfw3.h>
-#include "../stb/stb_image.h"
-
-#include <thread>
-#include <atomic>
-#include <future>
-#include <mutex>
-#include <chrono>
-
-#ifndef M_PI
-#define M_PI = 3.1415
-#endif
-
-std::mutex m;
-std::atomic<bool> isGenerating{false};
-std::future<void> generationFuture;
-
-std::mutex previewMutex;
-std::atomic<bool> updatePreview{false};
-frame currentPreviewFrame;
-GLuint textu = 0;
-std::string previewText;
-
-struct Shared {
-    std::mutex mutex;
-    Grid2 grid;
-    bool hasNewFrame = false;
-    int currentFrame = 0;
-};
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int numSeeds = 8;
-    int noisemod = 42;
-};
-
-Grid2 setup(AnimationConfig config) {
-    TIME_FUNCTION;
-    Grid2 grid;
-    std::vector<Vec2> pos;
-    std::vector<Vec4> colors;
-    std::vector<float> sizes;
-    for (int y = 0; y < config.height; ++y) {
-        for (int x = 0; x < config.width; ++x) {
-            float gradient = (x + y) / float(config.width + config.height - 2);
-            pos.push_back(Vec2(x,y));
-            colors.push_back(Vec4(gradient, gradient, gradient, 1.0f));
-            sizes.push_back(1.0f);
-        }
-    }
-    grid.bulkAddObjects(pos,colors,sizes);
-    return grid;
-}
-
-void Preview(Grid2& grid) {
-    TIME_FUNCTION;
-    int width;
-    int height;
-    //std::vector<uint8_t> rgbData;
-
-    frame rgbData = grid.getGridAsFrame(frame::colormap::RGB);
-    std::cout << "Frame looks like: " << rgbData << std::endl;
-    bool success = BMPWriter::saveBMP("output/grayscalesource.bmp", rgbData);
-    if (!success) {
-        std::cout << "yo! this failed in Preview" << std::endl;
-    }
-}
-
-void livePreview(const Grid2& grid) {
-    std::lock_guard<std::mutex> lock(previewMutex);
-    
-    currentPreviewFrame = grid.getGridAsFrame(frame::colormap::RGBA);
-
-    glGenTextures(1, &textu);
-    glBindTexture(GL_TEXTURE_2D, textu);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    
-    glBindTexture(GL_TEXTURE_2D, textu);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
-                 0, GL_RGBA, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
-    
-    updatePreview = true;
-}
-
-std::vector<std::tuple<size_t, Vec2, Vec4>> pickSeeds(Grid2 grid, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-
-    std::vector<std::tuple<size_t, Vec2, Vec4>> seeds;
-
-    for (int i = 0; i < config.numSeeds; ++i) {
-        Vec2 point(xDist(gen), yDist(gen));
-        Vec4 color(colorDist(gen), colorDist(gen), colorDist(gen), 255);
-        size_t id = grid.getOrCreatePositionVec(point, 0.0, true);
-        grid.setColor(id, color);
-        seeds.push_back(std::make_tuple(id,point, color));
-    }
-    return seeds;
-}
-
-void expandPixel(Grid2& grid, AnimationConfig config, std::vector<std::tuple<size_t, Vec2, Vec4>>& seeds) {
-    TIME_FUNCTION;
-    std::vector<std::tuple<size_t, Vec2, Vec4>> newseeds; 
-
-    std::unordered_set<size_t> visitedThisFrame; 
-    for (const auto& seed : seeds) {
-        visitedThisFrame.insert(std::get<0>(seed));
-    }
-
-    //#pragma omp parallel for
-    for (const std::tuple<size_t, Vec2, Vec4>& seed : seeds) {
-        size_t id = std::get<0>(seed);
-        Vec2 seedPOS = std::get<1>(seed);
-        Vec4 seedColor = std::get<2>(seed);
-        std::vector<size_t> neighbors = grid.getNeighbors(id);
-        //grid.setSize(id, grid.getSize(id)+4);
-        for (size_t neighbor : neighbors) {
-            if (visitedThisFrame.count(neighbor)) {
-                continue;
-            }
-            visitedThisFrame.insert(neighbor);
-
-            Vec2 neipos = grid.getPositionID(neighbor);
-            Vec4 neighborColor = grid.getColor(neighbor);
-            float distance = seedPOS.distance(neipos);
-            float angle = seedPOS.directionTo(neipos);
-
-            float normalizedAngle = (angle + M_PI) / (2.0f * M_PI);
-            float blendFactor = 0.3f + 0.4f * std::sin(normalizedAngle * 2.0f * M_PI);
-            blendFactor = std::clamp(blendFactor, 0.1f, 0.9f);
-            
-            Vec4 newcolor = Vec4(
-                seedColor.r * blendFactor + neighborColor.r * (1.0f - blendFactor),
-                seedColor.g * (1.0f - blendFactor) + neighborColor.g * blendFactor,
-                seedColor.b * (0.5f + 0.5f * std::sin(normalizedAngle * 4.0f * M_PI)),
-                1.0f
-            );
-            
-            newcolor = newcolor.clamp(0.0f, 1.0f);
-
-            grid.setColor(neighbor, newcolor);
-            newseeds.emplace_back(neighbor, neipos, newcolor);
-        }
-    }
-    seeds.clear();
-    seeds.shrink_to_fit();
-    seeds = std::move(newseeds);
-}
-
-//bool exportavi(std::vector<std::vector<uint8_t>> frames, AnimationConfig config) {
-bool exportavi(std::vector<frame> frames, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    
-    std::cout << "Frame count: " << frames.size() << std::endl;
-    
-    // Log compression statistics for all frames
-    std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
-    size_t totalOriginalSize = 0;
-    size_t totalCompressedSize = 0;
-    
-    for (int i = 0; i < frames.size(); ++i) {    
-        totalOriginalSize += frames[i].getSourceSize();
-        totalCompressedSize += frames[i].getTotalCompressedSize();
-    }
-    
-    double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
-    double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
-    
-    std::cout << "\n=== Overall Compression Summary ===" << std::endl;
-    std::cout << "Total frames: " << frames.size() << std::endl;
-    std::cout << "Compressed frames: " << frames.size() << std::endl;
-    std::cout << "Total original size: " << totalOriginalSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalOriginalSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Total compressed size: " << totalCompressedSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalCompressedSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Overall compression ratio: " << std::fixed << std::setprecision(2) << overallRatio << ":1" << std::endl;
-    std::cout << "Overall space savings: " << std::fixed << std::setprecision(1) << overallSavings << "%" << std::endl;
-    
-    std::filesystem::path dir = "output";
-    if (!std::filesystem::exists(dir)) {
-        if (!std::filesystem::create_directories(dir)) {
-            std::cout << "Failed to create output directory!" << std::endl;
-            return false;
-        }
-    }
-    
-    bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
-    
-    if (success) {
-        // Check if file actually exists
-        if (std::filesystem::exists(filename)) {
-            auto file_size = std::filesystem::file_size(filename);
-            std::cout << "\nAVI file created successfully: " << filename 
-                      << " (" << file_size << " bytes, " 
-                      << std::fixed << std::setprecision(2) << (file_size / (1024.0 * 1024.0)) << " MB)" << std::endl;
-        } 
-    } else {
-        std::cout << "Failed to save AVI file!" << std::endl;
-    }
-    
-    return success;
-}
-
-void mainLogic(const AnimationConfig& config, Shared& state, int gradnoise) {
-    TIME_FUNCTION;
-    isGenerating = true;
-    try {
-        Grid2 grid;
-        if (gradnoise == 0) {
-            grid = setup(config);
-        } else if (gradnoise == 1) {
-            grid = grid.noiseGenGrid(0,0,config.height, config.width, 0.01, 1.0, true, config.noisemod);
-        }
-        grid.setDefault(Vec4(0,0,0,0));
-        {
-            std:: lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = 0;
-        }
-        std::cout << "generated grid" << std::endl;
-        Preview(grid);
-        std::cout << "generated preview" << std::endl;
-        std::vector<std::tuple<size_t, Vec2, Vec4>> seeds = pickSeeds(grid, config);
-        std::vector<frame> frames;
-
-        for (int i = 0; i < config.totalFrames; ++i){
-            // Check if we should stop the generation
-            if (!isGenerating) {
-                std::cout << "Generation cancelled at frame " << i << std::endl;
-                return;
-            }
-            
-            expandPixel(grid,config,seeds);
-            
-            std::lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = i;
-
-            // Print compression info for this frame
-            if (i % 10 == 0 ) {
-                frame bgrframe;
-                std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
-                bgrframe = grid.getGridAsFrame(frame::colormap::BGR);
-                frames.push_back(bgrframe);
-                //bgrframe.decompress();
-                //BMPWriter::saveBMP(std::format("output/grayscalesource.{}.bmp", i), bgrframe);
-                bgrframe.compressFrameLZ78();
-                //bgrframe.printCompressionStats();
-            }
-        }
-        exportavi(frames,config);
-    }
-    catch (const std::exception& e) {
-        std::cerr << "errored at: " << e.what() << std::endl;
-    }
-    isGenerating = false;
-}
-
-// Function to cancel ongoing generation
-void cancelGeneration() {
-    if (isGenerating) {
-        isGenerating = false;
-        // Wait for the thread to finish (with timeout to avoid hanging)
-        if (generationFuture.valid()) {
-            auto status = generationFuture.wait_for(std::chrono::milliseconds(100));
-            if (status != std::future_status::ready) {
-                std::cout << "Waiting for generation thread to finish..." << std::endl;
-            }
-        }
-    }
-}
-
-static void glfw_error_callback(int error, const char* description)
-{
-    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
-}
-
-int main() {
-    //static bool window = true;
-    glfwSetErrorCallback(glfw_error_callback);
-    if (!glfwInit()) {
-        std::cerr << "gui stuff is dumb in c++." << std::endl;
-        glfwTerminate();
-        return 1;
-    }
-    // COPIED VERBATIM FROM IMGUI.
-    #if defined(IMGUI_IMPL_OPENGL_ES2)
-        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
-        const char* glsl_version = "#version 100";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(IMGUI_IMPL_OPENGL_ES3)
-        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-        const char* glsl_version = "#version 300 es";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(__APPLE__)
-        // GL 3.2 + GLSL 150
-        const char* glsl_version = "#version 150";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
-        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
-    #else
-        // GL 3.0 + GLSL 130
-        const char* glsl_version = "#version 130";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
-    #endif
-    //ImGui::SetNextWindowSize(ImVec2(1110,667));
-    //auto beg = ImGui::Begin("Gradient thing", &window);
-    //if (beg) {
-    // std::cout << "stuff breaks at 223" << std::endl;
-    bool application_not_closed = true;
-    //float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor());
-    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "Chromatic gradient generator thing", nullptr, nullptr);
-    if (window == nullptr)
-        return 1;
-    glfwMakeContextCurrent(window);
-    glfwSwapInterval(1);
-    //IMGUI_CHECKVERSION(); //this might be more important than I realize. but cant run with it so currently ignoring. 
-    ImGui::CreateContext();
-    // std::cout << "context created" << std::endl;
-    ImGuiIO& io = ImGui::GetIO(); (void)io;
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    ImGui::StyleColorsDark();
-    ImGuiStyle& style = ImGui::GetStyle();
-    //style.ScaleAllSizes(1);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    //style.FontScaleDpi = 1; //will need to implement my own scaling at some point. currently just ignoring it.
-    ImGui_ImplGlfw_InitForOpenGL(window, true);
-
-
-    #ifdef __EMSCRIPTEN__
-        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
-    #endif
-        ImGui_ImplOpenGL3_Init(glsl_version);
-
-
-    // std::cout << "created glfw window" << std::endl;
-
-
-    bool show_demo_window = true;
-    bool show_another_window = false;
-    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-    static float f = 30.0f;
-    static int i1 = 1024;
-    static int i2 = 1024;
-    static int i3 = 480;
-    static int i4 = 8;
-    static int noisemod = 42;
-    static float fs = 1.0;
-
-    std::future<void> mainlogicthread;
-    Shared state;
-    Grid2 grid;
-    AnimationConfig config;
-    previewText = "Please generate";
-    int gradnoise = true;
-    while (!glfwWindowShouldClose(window)) {
-        glfwPollEvents();
-
-        // Start the Dear ImGui frame
-        ImGui_ImplOpenGL3_NewFrame();
-        ImGui_ImplGlfw_NewFrame();
-        ImGui::NewFrame();
-        {
-
-            ImGui::Begin("settings");
-
-            ImGui::SliderFloat("fps", &f, 20.0f, 60.0f);
-            ImGui::SliderInt("width", &i1, 256, 4096);
-            ImGui::SliderInt("height", &i2, 256, 4096);
-            ImGui::SliderInt("frame count", &i3, 10, 5000);
-            ImGui::SliderInt("number of Seeds", &i4, 0, 10);
-            ImGui::SliderInt("Noise Mod", &noisemod, 0, 1000);
-            ImGui::SliderFloat("Scale Preview", &fs, 0.0, 2.0);
-            ImGui::RadioButton("Gradient", &gradnoise, 0);
-            ImGui::RadioButton("Perlin Noise", &gradnoise, 1);
-
-            if (isGenerating) {
-                ImGui::BeginDisabled();
-            }
-            
-            if (ImGui::Button("Generate Animation")) {
-                config = AnimationConfig(i1, i2, i3, f, i4, noisemod);
-                mainlogicthread = std::async(std::launch::async, mainLogic, config, std::ref(state), gradnoise);
-            }
-
-            if (isGenerating && textu != 0) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * fs, config.height * fs);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else if (isGenerating) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-
-            } else if (textu != 0){
-                //ImGui::EndDisabled();
-                                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * 0.5f, config.height * 0.5f);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else {
-                ImGui::Text("No preview available");
-                ImGui::Text("Start generation to see live preview");
-            }
-            //std::cout << "sleeping" << std::endl;
-            std::this_thread::sleep_for(std::chrono::milliseconds(100));
-            //std::cout << "ending" << std::endl;
-            ImGui::End();
-        }
-
-        
-        // std::cout << "ending frame" << std::endl;
-        ImGui::Render();
-        int display_w, display_h;
-        glfwGetFramebufferSize(window, &display_w, &display_h);
-        glViewport(0, 0, display_w, display_h);
-        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
-        glClear(GL_COLOR_BUFFER_BIT);
-        
-        // std::cout << "rendering" << std::endl;
-        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-        glfwSwapBuffers(window);
-        //mainlogicthread.join();
-        
-        // std::cout << "swapping buffers" << std::endl;
-    }
-    cancelGeneration();
-
-    
-    // std::cout << "shutting down" << std::endl;
-    ImGui_ImplOpenGL3_Shutdown();
-    ImGui_ImplGlfw_Shutdown();
-    ImGui::DestroyContext();
-
-    // std::cout << "destroying" << std::endl;
-    glfwDestroyWindow(window);
-    if (textu != 0) {
-        glDeleteTextures(1, &textu);
-        textu = 0;
-    }
-    glfwTerminate();
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-    
-    // std::cout << "printing" << std::endl;
-    return 0;
-}
-//I need this: https://raais.github.io/ImStudio/
-// g++ -std=c++23 -O3 -march=native -o ./bin/g2gradc ./tests/g2chromatic2.cpp -I./imgui -L./imgui -limgui -lstb `pkg-config --cflags --libs glfw3` && ./bin/g2gradc

tests/g2chromaticsimd.cpp

@@ -1,306 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <immintrin.h>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 240;
-    float fps = 30.0f;
-    int numSeeds = 1;
-};
-
-const float PI4 = M_PI / 4.0f;
-const float PI43 = PI4 * 3.0f;
-
-struct SeedDataSoA {
-    // Use alignas to ensure 16-byte alignment for SSE instructions
-    std::vector<float> sx, sy; // Seed X and Y positions
-    std::vector<float> sr, sg, sb, sa; // Seed R, G, B, A colors
-    size_t count = 0;
-
-    void reserve(size_t n) {
-        sx.reserve(n); sy.reserve(n);
-        sr.reserve(n); sg.reserve(n); sb.reserve(n); sa.reserve(n);
-    }
-};
-
-SeedDataSoA convertSeedsToSoA(const std::vector<Vec2>& points, const std::vector<Vec4>& colors) {
-    TIME_FUNCTION;
-    SeedDataSoA soaData;
-    size_t numSeeds = points.size();
-    // Pad to the nearest multiple of 4 for clean SIMD loops
-    size_t paddedSize = (numSeeds + 3) & ~3; 
-    soaData.count = paddedSize;
-    soaData.reserve(paddedSize);
-
-    for (size_t i = 0; i < numSeeds; ++i) {
-        soaData.sx.push_back(points[i].x);
-        soaData.sy.push_back(points[i].y);
-        soaData.sr.push_back(colors[i].r);
-        soaData.sg.push_back(colors[i].g);
-        soaData.sb.push_back(colors[i].b);
-        soaData.sa.push_back(colors[i].a);
-    }
-
-    // Add padding elements
-    for (size_t i = numSeeds; i < paddedSize; ++i) {
-        soaData.sx.push_back(0); soaData.sy.push_back(0);
-        soaData.sr.push_back(0); soaData.sg.push_back(0);
-        soaData.sb.push_back(0); soaData.sa.push_back(0);
-    }
-    std::cout << "Converted " << numSeeds << " seeds to SoA format (padded to " << paddedSize << ")" << std::endl;
-    return soaData;
-}
-
-// Helper for a horizontal add of a __m128 register
-inline float horizontal_add(__m128 v) {
-    __m128 shuf = _mm_movehdup_ps(v); // {v.z, v.z, v.w, v.w}
-    __m128 sums = _mm_add_ps(v, shuf);    // {v.x+v.z, v.y+v.z, v.z+v.w, v.w+v.w}
-    shuf = _mm_movehl_ps(shuf, sums); // {v.z+v.w, v.w+v.w, ...}
-    sums = _mm_add_ss(sums, shuf);    // adds lowest float
-    return _mm_cvtss_f32(sums);
-}
-
-// Non-optimized atan2 for a SIMD vector. For a real high-performance scenario,
-// you would use a library like SLEEF or a polynomial approximation.
-inline __m128 _mm_atan2_ps(__m128 y, __m128 x) {
-    float y_lanes[4], x_lanes[4];
-    _mm_storeu_ps(y_lanes, y);
-    _mm_storeu_ps(x_lanes, x);
-    for(int i = 0; i < 4; ++i) {
-        y_lanes[i] = std::atan2(y_lanes[i], x_lanes[i]);
-    }
-    return _mm_loadu_ps(y_lanes);
-}
-
-bool initializeGrid(Grid2& grid, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::cout << "Initializing grayscale grid..." << std::endl;
-    
-    for (int y = 1; y < config.height; ++y) {
-        for (int x = 1; x < config.width; ++x) {
-            float gradient = (x + y) / float(config.width + config.height - 2);
-            Vec2 position(static_cast<float>(x), static_cast<float>(y));
-            Vec4 color(gradient, gradient, gradient, 1.0f);
-            grid.addObject(position, color, 1.0f);
-        }
-    }
-    
-    std::cout << "Grayscale grid created with " << config.width * config.height << " objects" << std::endl;
-    return true;
-}
-
-
-std::pair<std::vector<Vec2>, std::vector<Vec4>> generateSeedPoints(const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-    
-    std::vector<Vec2> seedPoints;
-    std::vector<Vec4> seedColors;
-    
-    for (int i = 0; i < config.numSeeds; ++i) {
-        seedPoints.emplace_back(xDist(gen), yDist(gen));
-        seedColors.emplace_back(colorDist(gen), colorDist(gen), colorDist(gen), 1.0f); // Alpha fixed to 1.0
-    }
-    std::cout << "Generated " << config.numSeeds << " seed points for color propagation" << std::endl;
-    return {seedPoints, seedColors};
-}
-
-Vec4 calculateInfluencedColor(const Vec2& position, const Vec4& originalColor, float progress,
-                                   const SeedDataSoA& seeds, const AnimationConfig& config) {
-    const __m128 v_max_dist = _mm_set1_ps(std::max(config.width, config.height) * 0.6f);
-    const __m128 v_progress = _mm_set1_ps(progress);
-    const __m128 v_one = _mm_set1_ps(1.0f);
-    const __m128 v_zero = _mm_setzero_ps();
-    const __m128 v_pi4 = _mm_set1_ps(PI4);
-    const __m128 v_pi43 = _mm_set1_ps(PI43);
-    const __m128 v_neg_zero = _mm_set1_ps(-0.0f); // For fast absolute value
-
-    // Broadcast pixel position into SIMD registers
-    const __m128 v_pos_x = _mm_set1_ps(position.x);
-    const __m128 v_pos_y = _mm_set1_ps(position.y);
-
-    // Accumulators for color channel updates
-    __m128 r_updates = _mm_setzero_ps();
-    __m128 g_updates = _mm_setzero_ps();
-    __m128 b_updates = _mm_setzero_ps();
-    __m128 a_updates = _mm_setzero_ps();
-
-    // Process 4 seeds at a time
-    for (size_t s = 0; s < seeds.count; s += 4) {
-        // --- Load data for 4 seeds ---
-        const __m128 seed_x = _mm_load_ps(&seeds.sx[s]);
-        const __m128 seed_y = _mm_load_ps(&seeds.sy[s]);
-        
-        // --- Calculate distance and influence ---
-        const __m128 dir_x = _mm_sub_ps(v_pos_x, seed_x);
-        const __m128 dir_y = _mm_sub_ps(v_pos_y, seed_y);
-        const __m128 dist_sq = _mm_add_ps(_mm_mul_ps(dir_x, dir_x), _mm_mul_ps(dir_y, dir_y));
-        const __m128 dist = _mm_sqrt_ps(dist_sq);
-        __m128 influence = _mm_sub_ps(v_one, _mm_div_ps(dist, v_max_dist));
-        influence = _mm_max_ps(v_zero, influence); // clamp to 0
-
-        // --- Calculate full potential color contribution ---
-        const __m128 influence_progress = _mm_mul_ps(influence, v_progress);
-        const __m128 contrib_r = _mm_mul_ps(_mm_load_ps(&seeds.sr[s]), influence_progress);
-        const __m128 contrib_g = _mm_mul_ps(_mm_load_ps(&seeds.sg[s]), influence_progress);
-        const __m128 contrib_b = _mm_mul_ps(_mm_load_ps(&seeds.sb[s]), influence_progress);
-        const __m128 contrib_a = _mm_mul_ps(_mm_load_ps(&seeds.sa[s]), influence_progress);
-
-        // --- Branchless Masking based on Angle ---
-        const __m128 angle = _mm_atan2_ps(dir_y, dir_x);
-        const __m128 abs_angle = _mm_andnot_ps(v_neg_zero, angle); // fast abs
-
-        // Create masks for each condition
-        const __m128 mask_right = _mm_cmplt_ps(abs_angle, v_pi4);  // abs(angle) < PI4
-        const __m128 mask_left = _mm_cmpgt_ps(abs_angle, v_pi43); // abs(angle) > PI43
-        
-        // The "else if" logic is tricky. We need to ensure mutual exclusivity.
-        // mask_below is true if (angle > 0) AND NOT (right OR left)
-        const __m128 is_not_rl = _mm_andnot_ps(mask_right, _mm_andnot_ps(mask_left, v_one));
-        const __m128 mask_below = _mm_and_ps(_mm_cmpgt_ps(angle, v_zero), is_not_rl);
-
-        // The "else" case (above) is whatever is left over.
-        // mask_above is true if NOT (right OR left OR below)
-        const __m128 mask_above = _mm_andnot_ps(mask_below, is_not_rl);
-
-        // --- Accumulate updates using masks ---
-        // Add contribution only where mask is active (all 1s)
-        r_updates = _mm_add_ps(r_updates, _mm_and_ps(contrib_r, mask_above));
-        g_updates = _mm_add_ps(g_updates, _mm_and_ps(contrib_g, mask_below));
-        b_updates = _mm_add_ps(b_updates, _mm_and_ps(contrib_b, mask_left));
-        a_updates = _mm_add_ps(a_updates, _mm_and_ps(contrib_a, mask_right));
-    }
-
-    // --- Horizontal Reduction: Sum the updates from all lanes ---
-    Vec4 newColor = originalColor;
-    newColor.r += horizontal_add(r_updates);
-    newColor.g += horizontal_add(g_updates);
-    newColor.b += horizontal_add(b_updates);
-    newColor.a += horizontal_add(a_updates);
-
-    // --- Apply fmod(x, 1.0) which is x - floor(x) for positive numbers ---
-    // Can do this with SIMD as well for the final color vector
-    __m128 final_color_v = _mm_loadu_ps(&newColor.r);
-    final_color_v = _mm_sub_ps(final_color_v, _mm_floor_ps(final_color_v));
-    _mm_storeu_ps(&newColor.r, final_color_v);
-    
-    return newColor.clampColor();
-}
-
-void updateColorsForFrame(Grid2& grid, float progress, const SeedDataSoA& seeds, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    
-    grid.bulkUpdateColors([&](size_t id, const Vec2& pos, const Vec4& currentColor) {
-        return calculateInfluencedColor(pos, currentColor, progress, seeds, config);
-    });
-}
-
-std::vector<uint8_t> convertFrameToBGR(Grid2& grid, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    int frameWidth, frameHeight;
-    std::vector<int> bgrData;
-    grid.getGridRegionAsBGR(Vec2(0,0), Vec2(config.width, config.height), frameWidth, frameHeight, bgrData);
-    std::vector<uint8_t> bgrFrame(frameWidth * frameHeight * 3);
-    #pragma omp parallel for
-    for (int i = 0; i < frameWidth * frameHeight; ++i) {
-        bgrFrame[i * 3] = static_cast<uint8_t>(std::clamp(bgrData[i * 3], 0, 255));
-        bgrFrame[i * 3 + 1] = static_cast<uint8_t>(std::clamp(bgrData[i * 3 + 1], 0, 255));
-        bgrFrame[i * 3 + 2] = static_cast<uint8_t>(std::clamp(bgrData[i * 3 + 2], 0, 255));
-    }
-    return bgrFrame;
-}
-
-
-std::vector<std::vector<uint8_t>> createAnimationFrames(Grid2& grid, const SeedDataSoA& seeds, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::vector<std::vector<uint8_t>> frames;
-    
-    for (int frame = 0; frame < config.totalFrames; ++frame) {
-        std::cout << "Processing frame " << frame + 1 << "/" << config.totalFrames << std::endl;
-        
-        float progress = static_cast<float>(frame) / (config.totalFrames - 1);
-        updateColorsForFrame(grid, progress, seeds, config);
-        
-        std::vector<u_int8_t> bgrFrame = convertFrameToBGR(grid, config);
-        frames.push_back(bgrFrame);
-    }
-    
-    return frames;
-}
-
-void printSuccessMessage(const std::string& filename, const std::vector<Vec2>& seedPoints,
-                            const std::vector<Vec4>& seedColors, const AnimationConfig& config) {
-    std::cout << "\nSuccessfully saved chromatic transformation animation to: " << filename << std::endl;
-    std::cout << "Video details:" << std::endl;
-    std::cout << "  - Dimensions: " << config.width << " x " << config.height << std::endl;
-    std::cout << "  - Frames: " << config.totalFrames << " (" 
-              << config.totalFrames/config.fps << " seconds at " << config.fps << "fps)" << std::endl;
-    std::cout << "  - Seed points: " << config.numSeeds << std::endl;
-    
-    std::cout << "\nSeed points used:" << std::endl;
-    for (int i = 0; i < config.numSeeds; ++i) {
-        std::cout << "  Seed " << i + 1 << ": Position " << seedPoints[i] 
-                  << ", Color " << seedColors[i].toColorString() << std::endl;
-    }
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-}
-
-void printErrorMessage(const std::vector<std::vector<uint8_t>>& frames, const AnimationConfig& config) {
-    std::cerr << "Failed to save AVI file!" << std::endl;
-    std::cerr << "Debug info:" << std::endl;
-    std::cerr << "  - Frames count: " << frames.size() << std::endl;
-    if (!frames.empty()) {
-        std::cerr << "  - First frame size: " << frames[0].size() << std::endl;
-        std::cerr << "  - Expected frame size: " << config.width * config.height * 3 << std::endl;
-    }
-    std::cerr << "  - Width: " << config.width << ", Height: " << config.height << std::endl;
-}
-
-bool saveAnimation(const std::vector<std::vector<uint8_t>>& frames, const std::vector<Vec2>& seedPoints, 
-                  const std::vector<Vec4>& seedColors, const AnimationConfig& config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    std::cout << "Attempting to save AVI file: " << filename << std::endl;
-    
-    bool success = AVIWriter::saveAVI(filename, frames, config.width, config.height, config.fps);
-    
-    if (success) {
-        printSuccessMessage(filename, seedPoints, seedColors, config);
-        return true;
-    } else {
-        printErrorMessage(frames, config);
-        return false;
-    }
-}
-
-
-int main() {
-    std::cout << "Creating chromatic transformation animation..." << std::endl;
-    
-    AnimationConfig config;
-    
-    Grid2 grid;
-    if (!initializeGrid(grid, config)) return 1;
-    
-    auto [seedPoints, seedColors] = generateSeedPoints(config);
-    auto seeds_SoA = convertSeedsToSoA(seedPoints, seedColors);
-    
-    // Create animation frames using the SIMD-friendly data
-    auto frames = createAnimationFrames(grid, seeds_SoA, config);
-    
-    if (!saveAnimation(frames, seedPoints, seedColors, config)) return 1;
-    
-    return 0;
-}

tests/g2grayscale.cpp

@@ -1,74 +0,0 @@
-#include <iostream>
-#include <vector>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/bmpwriter.hpp"
-
-int main() {
-    // Create a Grid2 instance
-    Grid2 grid;
-    
-    // Grid dimensions
-    const int width = 100;
-    const int height = 100;
-    
-    std::cout << "Creating grayscale gradient..." << std::endl;
-    
-    // Add objects to create a grayscale gradient
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            // Calculate gradient value (0.0 at top-left to 1.0 at bottom-right)
-            float gradient = (x + y) / float(width + height - 2);
-            
-            // Create position
-            Vec2 position(static_cast<float>(x), static_cast<float>(y));
-            
-            // Create grayscale color (r=g=b=gradient, a=1.0)
-            Vec4 color(gradient, gradient, gradient, 1.0f);
-            
-            // Add to grid with size 1.0 (single pixel)
-            grid.addObject(position, color, 1.0f);
-        }
-    }
-    
-    std::cout << "Added " << width * height << " objects to grid" << std::endl;
-    
-    // Get the entire grid as RGB data
-    int outputWidth, outputHeight;
-    std::vector<int> rgbData;
-    grid.getGridAsRGB(outputWidth, outputHeight, rgbData);
-    
-    std::cout << "Output dimensions: " << outputWidth << " x " << outputHeight << std::endl;
-    std::cout << "RGB data size: " << rgbData.size() << " elements" << std::endl;
-    
-    // Convert RGB data to format suitable for BMPWriter
-    std::vector<Vec3> pixels;
-    pixels.reserve(outputWidth * outputHeight);
-    
-    for (size_t i = 0; i < rgbData.size(); i += 3) {
-        float r = rgbData[i] / 255.0f;
-        float g = rgbData[i + 1] / 255.0f;
-        float b = rgbData[i + 2] / 255.0f;
-        pixels.emplace_back(r, g, b);
-    }
-    
-    // Save as BMP
-    std::string filename = "output/grayscale_gradient.bmp";
-    bool success = BMPWriter::saveBMP(filename, pixels, outputWidth, outputHeight);
-    
-    if (success) {
-        std::cout << "Successfully saved grayscale gradient to: " << filename << std::endl;
-        
-        // Print some gradient values for verification
-        std::cout << "\nGradient values at key positions:" << std::endl;
-        std::cout << "Top-left (0,0): " << grid.getColor(grid.getIndicesAt(0, 0)[0]).r << std::endl;
-        std::cout << "Center (" << width/2 << "," << height/2 << "): " 
-                  << grid.getColor(grid.getIndicesAt(width/2, height/2)[0]).r << std::endl;
-        std::cout << "Bottom-right (" << width-1 << "," << height-1 << "): " 
-                  << grid.getColor(grid.getIndicesAt(width-1, height-1)[0]).r << std::endl;
-    } else {
-        std::cerr << "Failed to save BMP file!" << std::endl;
-        return 1;
-    }
-    
-    return 0;
-}

tests/g2temp.cpp

@@ -1,560 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-#include <unordered_set>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/output/bmpwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-#include "../imgui/imgui.h"
-#include "../imgui/backends/imgui_impl_glfw.h"
-#include "../imgui/backends/imgui_impl_opengl3.h"
-#include <GLFW/glfw3.h>
-#include "../stb/stb_image.h"
-
-#include <thread>
-#include <atomic>
-#include <future>
-#include <mutex>
-#include <chrono>
-
-#ifndef M_PI
-#define M_PI = 3.1415
-#endif
-
-std::mutex m;
-std::atomic<int> isGenerating{0};
-std::future<void> generationFuture;
-
-std::mutex previewMutex;
-std::atomic<bool> updatePreview{false};
-frame currentPreviewFrame;
-GLuint textu = 0;
-std::string previewText;
-
-struct Shared {
-    std::mutex mutex;
-    Grid2 grid;
-    bool hasNewFrame = false;
-    int currentFrame = 0;
-};
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int numSeeds = 8;
-    int noisemod = 42;
-};
-
-Grid2 setup(AnimationConfig config) {
-    TIME_FUNCTION;
-    Grid2 grid;
-    std::vector<Vec2> pos;
-    std::vector<Vec4> colors;
-    std::vector<float> sizes;
-    for (int y = 0; y < config.height - 1; ++y) {
-        for (int x = 0; x < config.width - 1; ++x) {
-            float gradient = (x + y) / float(config.width + config.height - 2);
-            pos.push_back(Vec2(x,y));
-            colors.push_back(Vec4(gradient, gradient, gradient, 1.0f));
-            sizes.push_back(1.0f);
-        }
-    }
-    grid.bulkAddObjects(pos,colors,sizes);
-    return grid;
-}
-
-void Preview(Grid2& grid) {
-    TIME_FUNCTION;
-    int width;
-    int height;
-    //std::vector<uint8_t> rgbData;
-
-    frame rgbData = grid.getGridAsFrame(frame::colormap::RGB);
-    std::cout << "Frame looks like: " << rgbData << std::endl;
-    bool success = BMPWriter::saveBMP("output/grayscalesource.bmp", rgbData);
-    if (!success) {
-        std::cout << "yo! this failed in Preview" << std::endl;
-    }
-}
-
-void livePreview(Grid2& grid, AnimationConfig config) {
-    // std::lock_guard<std::mutex> lock(previewMutex);
-    
-    // currentPreviewFrame = grid.getTempAsFrame(Vec2(0,0), Vec2(config.height,config.width), Vec2(256,256),frame::colormap::RGBA);
-    // // Vec2 min;
-    // // Vec2 max;
-    // // grid.getBoundingBox(min, max);
-    // //currentPreviewFrame = grid.getTempAsFrame(min,max, Vec2(1024,1024));
-
-    // glGenTextures(1, &textu);
-    // glBindTexture(GL_TEXTURE_2D, textu);
-    // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    // glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    
-    // glBindTexture(GL_TEXTURE_2D, textu);
-    // glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
-    //              0, GL_RGBA, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
-    
-    // updatePreview = true;
-}
-
-std::vector<std::tuple<size_t, Vec2, Vec4>> pickSeeds(Grid2 grid, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-
-    std::vector<std::tuple<size_t, Vec2, Vec4>> seeds;
-
-    for (int i = 0; i < config.numSeeds; ++i) {
-        Vec2 point(xDist(gen), yDist(gen));
-        Vec4 color(colorDist(gen), colorDist(gen), colorDist(gen), 255);
-        size_t id = grid.getOrCreatePositionVec(point, 0.0, true);
-        grid.setColor(id, color);
-        seeds.push_back(std::make_tuple(id,point, color));
-    }
-    return seeds;
-}
-
-void pickTempSeeds(Grid2& grid, AnimationConfig config) {    
-    std::cout << "pickTempSeeds()" << std::endl;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> temp(0.0f, 100.0f);
-
-    for (int i = 0; i < config.numSeeds * 100; ++i){
-        grid.setTemp(Vec2(xDist(gen),yDist(gen)).floor(), temp(gen));
-    }
-}
-
-void expandPixel(Grid2& grid, AnimationConfig config, std::vector<std::tuple<size_t, Vec2, Vec4>>& seeds) {
-    TIME_FUNCTION;
-    std::vector<std::tuple<size_t, Vec2, Vec4>> newseeds; 
-
-    std::unordered_set<size_t> visitedThisFrame; 
-    for (const auto& seed : seeds) {
-        visitedThisFrame.insert(std::get<0>(seed));
-    }
-
-    //#pragma omp parallel for
-    for (const std::tuple<size_t, Vec2, Vec4>& seed : seeds) {
-        size_t id = std::get<0>(seed);
-        Vec2 seedPOS = std::get<1>(seed);
-        Vec4 seedColor = std::get<2>(seed);
-        std::vector<size_t> neighbors = grid.getNeighbors(id);
-        //grid.setSize(id, grid.getSize(id)+4);
-        for (size_t neighbor : neighbors) {
-            if (visitedThisFrame.count(neighbor)) {
-                continue;
-            }
-            visitedThisFrame.insert(neighbor);
-
-            Vec2 neipos = grid.getPositionID(neighbor);
-            Vec4 neighborColor = grid.getColor(neighbor);
-            float distance = seedPOS.distance(neipos);
-            float angle = seedPOS.directionTo(neipos);
-
-            float normalizedAngle = (angle + M_PI) / (2.0f * M_PI);
-            float blendFactor = 0.3f + 0.4f * std::sin(normalizedAngle * 2.0f * M_PI);
-            blendFactor = std::clamp(blendFactor, 0.1f, 0.9f);
-            
-            Vec4 newcolor = Vec4(
-                seedColor.r * blendFactor + neighborColor.r * (1.0f - blendFactor),
-                seedColor.g * (1.0f - blendFactor) + neighborColor.g * blendFactor,
-                seedColor.b * (0.5f + 0.5f * std::sin(normalizedAngle * 4.0f * M_PI)),
-                1.0f
-            );
-            
-            newcolor = newcolor.clamp(0.0f, 1.0f);
-
-            grid.setColor(neighbor, newcolor);
-            newseeds.emplace_back(neighbor, neipos, newcolor);
-        }
-    }
-    seeds.clear();
-    seeds.shrink_to_fit();
-    seeds = std::move(newseeds);
-}
-
-//bool exportavi(std::vector<std::vector<uint8_t>> frames, AnimationConfig config) {
-bool exportavi(std::vector<frame> frames, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    
-    std::cout << "Frame count: " << frames.size() << std::endl;
-    
-    // Log compression statistics for all frames
-    std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
-    size_t totalOriginalSize = 0;
-    size_t totalCompressedSize = 0;
-    
-    for (int i = 0; i < frames.size(); ++i) {    
-        totalOriginalSize += frames[i].getSourceSize();
-        totalCompressedSize += frames[i].getTotalCompressedSize();
-    }
-    
-    double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
-    double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
-    
-    std::cout << "\n=== Overall Compression Summary ===" << std::endl;
-    std::cout << "Total frames: " << frames.size() << std::endl;
-    std::cout << "Compressed frames: " << frames.size() << std::endl;
-    std::cout << "Total original size: " << totalOriginalSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalOriginalSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Total compressed size: " << totalCompressedSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalCompressedSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Overall compression ratio: " << std::fixed << std::setprecision(2) << overallRatio << ":1" << std::endl;
-    std::cout << "Overall space savings: " << std::fixed << std::setprecision(1) << overallSavings << "%" << std::endl;
-    
-    std::filesystem::path dir = "output";
-    if (!std::filesystem::exists(dir)) {
-        if (!std::filesystem::create_directories(dir)) {
-            std::cout << "Failed to create output directory!" << std::endl;
-            return false;
-        }
-    }
-    
-    bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
-    
-    if (success) {
-        // Check if file actually exists
-        if (std::filesystem::exists(filename)) {
-            auto file_size = std::filesystem::file_size(filename);
-            std::cout << "\nAVI file created successfully: " << filename 
-                      << " (" << file_size << " bytes, " 
-                      << std::fixed << std::setprecision(2) << (file_size / (1024.0 * 1024.0)) << " MB)" << std::endl;
-        } 
-    } else {
-        std::cout << "Failed to save AVI file!" << std::endl;
-    }
-    
-    return success;
-}
-
-void mainLogic(const AnimationConfig& config, Shared& state, int gradnoise) {
-    TIME_FUNCTION;
-    if (isGenerating != 0) return; //apparently sometimes this function is called twice. dont know how, but this might resolve that.
-    
-    try {
-        Grid2 grid;
-        isGenerating = 1;
-        if (gradnoise == 0) {
-            grid = setup(config);
-        } else if (gradnoise == 1) {
-            grid = grid.noiseGenGridTemps(0,0,config.height, config.width, 0.01, 1.0, false, config.noisemod);
-        }
-        grid.setDefault(Vec4(0,0,0,0));
-        {
-            std:: lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = 0;
-        }
-        //pickTempSeeds(grid,config);
-        
-        //std::vector<std::tuple<size_t, Vec2, Vec4>> seeds = pickSeeds(grid, config);
-        std::cout << "generated grid" << std::endl;
-        Preview(grid);
-        std::cout << "generated preview" << std::endl;
-        //grid = grid.backfillGrid();
-        frame tempData = grid.getTempAsFrame(Vec2(0,0), Vec2(config.height,config.width), Vec2(256,256));
-        std::cout << "Temp frame looks like: " << tempData << std::endl;
-        bool success = BMPWriter::saveBMP("output/temperature.bmp", tempData);
-        if (!success) {
-            std::cout << "yo! this failed in Preview" << std::endl;
-        }
-        isGenerating = 2;
-        std::vector<frame> frames;
-
-        for (int i = 0; i < config.totalFrames; ++i){
-            // Check if we should stop the generation
-            if (isGenerating == 0) {
-                std::cout << "Generation cancelled at frame " << i << std::endl;
-                return;
-            }
-            
-            //expandPixel(grid,config,seeds);
-            grid.diffuseTemps(100);
-            
-            std::lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = i;
-
-            // Print compression info for this frame
-            //if (i % 10 == 0 ) {
-                frame bgrframe;
-                std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
-                bgrframe = grid.getTempAsFrame(Vec2(0,0), Vec2(config.height,config.width), Vec2(256,256), frame::colormap::BGR);
-                frames.push_back(bgrframe);
-                //bgrframe.decompress();
-                //BMPWriter::saveBMP(std::format("output/grayscalesource.{}.bmp", i), bgrframe);
-                bgrframe.compressFrameLZ78();
-                //bgrframe.printCompressionStats();
-            //}
-        }
-        exportavi(frames,config);
-    }
-    catch (const std::exception& e) {
-        std::cerr << "errored at: " << e.what() << std::endl;
-    }
-    isGenerating = 0;
-}
-
-// Function to cancel ongoing generation
-void cancelGeneration() {
-    if (isGenerating) {
-        isGenerating = 0;
-        // Wait for the thread to finish (with timeout to avoid hanging)
-        if (generationFuture.valid()) {
-            auto status = generationFuture.wait_for(std::chrono::milliseconds(100));
-            if (status != std::future_status::ready) {
-                std::cout << "Waiting for generation thread to finish..." << std::endl;
-            }
-        }
-    }
-}
-
-static void glfw_error_callback(int error, const char* description)
-{
-    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
-}
-
-int main() {
-    //static bool window = true;
-    glfwSetErrorCallback(glfw_error_callback);
-    if (!glfwInit()) {
-        std::cerr << "gui stuff is dumb in c++." << std::endl;
-        glfwTerminate();
-        return 1;
-    }
-    // COPIED VERBATIM FROM IMGUI.
-    #if defined(IMGUI_IMPL_OPENGL_ES2)
-        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
-        const char* glsl_version = "#version 100";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(IMGUI_IMPL_OPENGL_ES3)
-        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-        const char* glsl_version = "#version 300 es";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(__APPLE__)
-        // GL 3.2 + GLSL 150
-        const char* glsl_version = "#version 150";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
-        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
-    #else
-        // GL 3.0 + GLSL 130
-        const char* glsl_version = "#version 130";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
-    #endif
-    //ImGui::SetNextWindowSize(ImVec2(1110,667));
-    //auto beg = ImGui::Begin("Gradient thing", &window);
-    //if (beg) {
-    // std::cout << "stuff breaks at 223" << std::endl;
-    bool application_not_closed = true;
-    //float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor());
-    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "Chromatic gradient generator thing", nullptr, nullptr);
-    if (window == nullptr)
-        return 1;
-    glfwMakeContextCurrent(window);
-    glfwSwapInterval(1);
-    //IMGUI_CHECKVERSION(); //this might be more important than I realize. but cant run with it so currently ignoring. 
-    ImGui::CreateContext();
-    // std::cout << "context created" << std::endl;
-    ImGuiIO& io = ImGui::GetIO(); (void)io;
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    ImGui::StyleColorsDark();
-    ImGuiStyle& style = ImGui::GetStyle();
-    //style.ScaleAllSizes(1);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    //style.FontScaleDpi = 1; //will need to implement my own scaling at some point. currently just ignoring it.
-    ImGui_ImplGlfw_InitForOpenGL(window, true);
-
-
-    #ifdef __EMSCRIPTEN__
-        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
-    #endif
-        ImGui_ImplOpenGL3_Init(glsl_version);
-    
-    bool show_demo_window = true;
-    bool show_another_window = false;
-    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-    static float f = 30.0f;
-    static int i1 = 256;
-    static int i2 = 256;
-    static int i3 = 4800;
-    static int i4 = 8;
-    static int noisemod = 42;
-    static float fs = 1.0;
-    int gradnoise = 1;
-
-    std::future<void> mainlogicthread;
-    Shared state;
-    Grid2 grid;
-    AnimationConfig config;
-    previewText = "Please generate";
-    mainlogicthread = std::async(std::launch::async, mainLogic, config, std::ref(state), gradnoise);
-    while (!glfwWindowShouldClose(window)) {
-        glfwPollEvents();
-
-        // Start the Dear ImGui frame
-        ImGui_ImplOpenGL3_NewFrame();
-        ImGui_ImplGlfw_NewFrame();
-        ImGui::NewFrame();
-        {
-
-            ImGui::Begin("settings");
-
-            ImGui::SliderFloat("fps", &f, 20.0f, 60.0f);
-            ImGui::SliderInt("width", &i1, 256, 4096);
-            ImGui::SliderInt("height", &i2, 256, 4096);
-            ImGui::SliderInt("frame count", &i3, 10, 5000);
-            ImGui::SliderInt("number of Seeds", &i4, 0, 10);
-            ImGui::SliderInt("Noise Mod", &noisemod, 0, 1000);
-            ImGui::SliderFloat("Scale Preview", &fs, 0.0, 2.0);
-            ImGui::RadioButton("Gradient", &gradnoise, 0);
-            ImGui::RadioButton("Perlin Noise", &gradnoise, 1);
-
-            if (isGenerating != 0) {
-                ImGui::BeginDisabled();
-            }
-            
-            if (ImGui::Button("Generate Animation")) {
-                config = AnimationConfig(i1, i2, i3, f, i4, noisemod);
-                mainlogicthread = std::async(std::launch::async, mainLogic, config, std::ref(state), gradnoise);
-            }
-
-            if (isGenerating == 2 && textu != 0) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid, config);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * fs, config.height * fs);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else if (isGenerating == 2) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid, config);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-
-            } else if (textu != 0){
-                                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * 0.5f, config.height * 0.5f);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else if (isGenerating != 0) {
-                ImGui::EndDisabled();
-                                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * 0.5f, config.height * 0.5f);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-
-            } else {
-                ImGui::Text("No preview available");
-                ImGui::Text("Start generation to see live preview");
-            }
-            std::this_thread::sleep_for(std::chrono::milliseconds(100));
-            ImGui::End();
-        }
-
-        
-        ImGui::Render();
-        int display_w, display_h;
-        glfwGetFramebufferSize(window, &display_w, &display_h);
-        glViewport(0, 0, display_w, display_h);
-        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
-        glClear(GL_COLOR_BUFFER_BIT);
-        
-        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-        glfwSwapBuffers(window);
-        
-    }
-    cancelGeneration();
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-
-    
-    ImGui_ImplOpenGL3_Shutdown();
-    ImGui_ImplGlfw_Shutdown();
-    ImGui::DestroyContext();
-
-    glfwDestroyWindow(window);
-    if (textu != 0) {
-        glDeleteTextures(1, &textu);
-        textu = 0;
-    }
-    glfwTerminate();
-    
-    return 0;
-}

tests/g3chromatic.cpp

@@ -1,557 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-#include <unordered_set>
-#include "../util/grid/grid3.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/output/bmpwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-#include "../imgui/imgui.h"
-#include "../imgui/backends/imgui_impl_glfw.h"
-#include "../imgui/backends/imgui_impl_opengl3.h"
-#include <GLFW/glfw3.h>
-#include "../stb/stb_image.h"
-
-#include <thread>
-#include <atomic>
-#include <future>
-#include <mutex>
-#include <chrono>
-
-#ifndef M_PI
-#define M_PI = 3.1415
-#endif
-
-std::mutex m;
-std::atomic<bool> isGenerating{false};
-std::future<void> generationFuture;
-
-std::mutex previewMutex;
-std::atomic<bool> updatePreview{false};
-frame currentPreviewFrame;
-GLuint textu = 0;
-std::string previewText;
-
-struct Shared {
-    std::mutex mutex;
-    Grid3 grid;
-    bool hasNewFrame = false;
-    int currentFrame = 0;
-};
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int depth = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int numSeeds = 8;
-    int noisemod = 42;
-};
-
-Grid3 setup(AnimationConfig config) {
-    TIME_FUNCTION;
-    Grid3 grid;
-    std::vector<Vec3f> pos;
-    std::vector<Vec4ui8> colors;
-    for (int x = 0; x < config.height; ++x) {
-        float r = (x / config.height) * 255;
-        for (int y = 0; y < config.width; ++y) {
-            float g = (y / config.height) * 255;
-            for (int z = 0; z < config.depth; ++z) {
-                float b = (z / config.height) * 255;
-                pos.push_back(Vec3f(x,y,z));
-                colors.push_back(Vec4ui8(r, g, b, 1.0f));
-            }
-        }
-    }
-    grid.bulkAddObjects(pos,colors);
-    return grid;
-}
-
-void Preview(AnimationConfig config, Grid3& grid) {
-    TIME_FUNCTION;
-    
-    frame rgbData = grid.getGridAsFrame(Vec2(config.width, config.height), Ray3(Vec3f(config.width + 10,config.height + 10,config.depth + 10), Vec3f(0)), frame::colormap::RGB);
-    std::cout << "Frame looks like: " << rgbData << std::endl;
-    bool success = BMPWriter::saveBMP("output/grayscalesource3d.bmp", rgbData);
-        if (!success) {
-        std::cout << "yo! this failed in Preview" << std::endl;
-    }
-}
-
-void livePreview(const Grid3& grid, AnimationConfig config) {
-    // std::lock_guard<std::mutex> lock(previewMutex);
-    
-    // currentPreviewFrame = grid.getGridAsFrame(Vec2(config.width, config.height), Ray3(Vec3f(config.width + 10,config.height + 10,config.depth + 10), Vec3f(0)), frame::colormap::RGBA);
-
-    // glGenTextures(1, &textu);
-    // glBindTexture(GL_TEXTURE_2D, textu);
-    // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    // glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    
-    // glBindTexture(GL_TEXTURE_2D, textu);
-    // glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
-    //              0, GL_RGBA, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
-    
-    // updatePreview = true;
-}
-
-std::vector<std::tuple<size_t, Vec3f, Vec4ui8>> pickSeeds(Grid3& grid, AnimationConfig config) {
-    TIME_FUNCTION;
-    // std::cout << "picking seeds" << std::endl;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_int_distribution<> zDist(0, config.depth - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-
-    std::vector<std::tuple<size_t, Vec3f, Vec4ui8>> seeds;
-
-    for (int i = 0; i < config.numSeeds; ++i) {
-        Vec3f point(xDist(gen), yDist(gen), zDist(gen));
-        Vec4ui8 color(colorDist(gen), colorDist(gen), colorDist(gen), 255);
-        bool foundValidPos;
-        int maxTries = 0;
-        while (!foundValidPos && maxTries < 10) {
-            maxTries++;
-            //size_t id = grid.getPositionVec(point, 0.5);
-            size_t id = grid.getOrCreatePositionVec(point, 0.0, true);
-            if (id > 0) foundValidPos = true;
-            grid.setColor(id, color);
-            seeds.push_back(std::make_tuple(id,point, color));
-        }
-    }
-    std::cout << "picked seeds" << std::endl;
-    return seeds;
-}
-
-void expandPixel(Grid3& grid, AnimationConfig config, std::vector<std::tuple<size_t, Vec3f, Vec4ui8>>& seeds) {
-    TIME_FUNCTION;
-    std::cout << "expanding pixel" << std::endl;
-    std::vector<std::tuple<size_t, Vec3f, Vec4ui8>> newseeds; 
-
-    int counter = 0;
-    std::unordered_set<size_t> visitedThisFrame; 
-    for (const auto& seed : seeds) {
-        visitedThisFrame.insert(std::get<0>(seed));
-    }
-
-    //std::cout << "counter at: " << counter++ << std::endl;
-    for (const std::tuple<size_t, Vec3f, Vec4ui8>& seed : seeds) {
-        size_t id = std::get<0>(seed);
-        Vec3f seedPOS = std::get<1>(seed);
-        Vec4ui8 seedColor = std::get<2>(seed);
-        std::vector<size_t> neighbors = grid.getNeighbors(id);
-        for (size_t neighbor : neighbors) {
-            std::cout << "counter at 1: " << counter++ << std::endl;
-            if (visitedThisFrame.count(neighbor)) {
-                continue;
-            }
-            
-            Vec3f neipos;
-            try {
-                neipos = grid.getPositionID(neighbor);
-            } catch (const std::out_of_range& e) {
-                continue;
-            }
-            Vec4ui8 neighborColor;
-            try {
-                neighborColor = grid.getColor(neighbor);
-            } catch (const std::out_of_range& e) {
-                // If color doesn't exist, use default or skip
-                continue;
-            }
-            visitedThisFrame.insert(neighbor);
-
-            // Vec3f neipos = grid.getPositionID(neighbor);
-            // Vec4 neighborColor = grid.getColor(neighbor);
-            float distance = seedPOS.distance(neipos);
-            float angle = seedPOS.directionTo(neipos);
-
-            float normalizedAngle = (angle + M_PI) / (2.0f * M_PI);
-            float blendFactor = 0.3f + 0.4f * std::sin(normalizedAngle * 2.0f * M_PI);
-            blendFactor = std::clamp(blendFactor, 0.1f, 0.9f);
-            //std::cout << "counter at 2: " << counter++ << std::endl;
-            Vec4ui8 newcolor = Vec4ui8(
-                seedColor.r * blendFactor + neighborColor.r * (1.0f - blendFactor),
-                seedColor.g * (1.0f - blendFactor) + neighborColor.g * blendFactor,
-                seedColor.b * (0.5f + 0.5f * std::sin(normalizedAngle * 4.0f * M_PI)),
-                1.0f
-            );
-            
-            newcolor = newcolor.clamp(0.0f, 1.0f);
-
-            grid.setColor(neighbor, newcolor);
-            newseeds.emplace_back(neighbor, neipos, newcolor);
-            std::cout << "counter at 3: " << counter++ << std::endl;
-        }
-    }
-    seeds.clear();
-    seeds.shrink_to_fit();
-    seeds = std::move(newseeds);
-    //std::cout << "expanded pixel" << std::endl;
-}
-
-//bool exportavi(std::vector<std::vector<uint8_t>> frames, AnimationConfig config) {
-bool exportavi(std::vector<frame> frames, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation3d.avi";
-    
-    std::cout << "Frame count: " << frames.size() << std::endl;
-    
-    // Log compression statistics for all frames
-    std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
-    size_t totalOriginalSize = 0;
-    size_t totalCompressedSize = 0;
-    
-    for (int i = 0; i < frames.size(); ++i) {    
-        totalOriginalSize += frames[i].getSourceSize();
-        totalCompressedSize += frames[i].getTotalCompressedSize();
-    }
-    
-    double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
-    double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
-    
-    std::cout << "\n=== Overall Compression Summary ===" << std::endl;
-    std::cout << "Total frames: " << frames.size() << std::endl;
-    std::cout << "Compressed frames: " << frames.size() << std::endl;
-    std::cout << "Total original size: " << totalOriginalSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalOriginalSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Total compressed size: " << totalCompressedSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalCompressedSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Overall compression ratio: " << std::fixed << std::setprecision(2) << overallRatio << ":1" << std::endl;
-    std::cout << "Overall space savings: " << std::fixed << std::setprecision(1) << overallSavings << "%" << std::endl;
-    
-    std::filesystem::path dir = "output";
-    if (!std::filesystem::exists(dir)) {
-        if (!std::filesystem::create_directories(dir)) {
-            std::cout << "Failed to create output directory!" << std::endl;
-            return false;
-        }
-    }
-    
-    bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
-    
-    if (success) {
-        // Check if file actually exists
-        if (std::filesystem::exists(filename)) {
-            auto file_size = std::filesystem::file_size(filename);
-            std::cout << "\nAVI file created successfully: " << filename 
-                      << " (" << file_size << " bytes, " 
-                      << std::fixed << std::setprecision(2) << (file_size / (1024.0 * 1024.0)) << " MB)" << std::endl;
-        } 
-    } else {
-        std::cout << "Failed to save AVI file!" << std::endl;
-    }
-    
-    return success;
-}
-
-void mainLogic(const AnimationConfig& config, Shared& state, int gradnoise) {
-    TIME_FUNCTION;
-    isGenerating = true;
-    try {
-        Grid3 grid;
-        if (gradnoise == 0) {
-            grid = setup(config);
-        } else if (gradnoise == 1) {
-            grid = grid.noiseGenGrid(Vec3f(0, 0, 0), Vec3f(config.height, config.width, config.depth), 0.01, 1.0, true, config.noisemod);
-        }
-        grid.setDefault(Vec4ui8(0,0,0,0));
-        {
-            std::lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = 0;
-        }
-        std::cout << "generated grid" << std::endl;
-        Preview(config, grid);
-        std::cout << "generated preview" << std::endl;
-        std::vector<std::tuple<size_t, Vec3f, Vec4ui8>> seeds = pickSeeds(grid, config);
-        std::vector<frame> frames;
-
-        for (int i = 0; i < config.totalFrames; ++i){
-            // Check if we should stop the generation
-            if (!isGenerating) {
-                std::cout << "Generation cancelled at frame " << i << std::endl;
-                return;
-            }
-            
-            //expandPixel(grid,config,seeds);
-            
-                std::lock_guard<std::mutex> lock(state.mutex);
-                state.grid = grid;
-                state.hasNewFrame = true;
-                state.currentFrame = i;
-                
-            //if (i % 10 == 0 ) {
-            frame bgrframe;
-            std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
-                bgrframe = grid.getGridAsFrame(Vec2(config.width,config.height), Ray3(Vec3f(config.width + 10,config.height + 10,config.depth + 10), Vec3f(0)), frame::colormap::BGR);
-            frames.push_back(bgrframe);
-                // BMPWriter::saveBMP(std::format("output/grayscalesource3d.{}.bmp", i), bgrframe);
-            bgrframe.compressFrameLZ78();
-                //bgrframe.printCompressionStats();
-            //}
-        }
-        exportavi(frames,config);
-    }
-    catch (const std::exception& e) {
-        std::cerr << "errored at: " << e.what() << std::endl;
-    }
-    isGenerating = false;
-}
-
-// Function to cancel ongoing generation
-void cancelGeneration() {
-    if (isGenerating) {
-        isGenerating = false;
-        // Wait for the thread to finish (with timeout to avoid hanging)
-        if (generationFuture.valid()) {
-            auto status = generationFuture.wait_for(std::chrono::milliseconds(100));
-            if (status != std::future_status::ready) {
-                std::cout << "Waiting for generation thread to finish..." << std::endl;
-            }
-        }
-    }
-}
-
-static void glfw_error_callback(int error, const char* description)
-{
-    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
-}
-
-int main() {
-    //static bool window = true;
-    glfwSetErrorCallback(glfw_error_callback);
-    if (!glfwInit()) {
-        std::cerr << "gui stuff is dumb in c++." << std::endl;
-        glfwTerminate();
-        return 1;
-    }
-    // COPIED VERBATIM FROM IMGUI.
-    #if defined(IMGUI_IMPL_OPENGL_ES2)
-        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
-        const char* glsl_version = "#version 100";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(IMGUI_IMPL_OPENGL_ES3)
-        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-        const char* glsl_version = "#version 300 es";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(__APPLE__)
-        // GL 3.2 + GLSL 150
-        const char* glsl_version = "#version 150";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
-        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
-    #else
-        // GL 3.0 + GLSL 130
-        const char* glsl_version = "#version 130";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
-    #endif
-    //ImGui::SetNextWindowSize(ImVec2(1110,667));
-    //auto beg = ImGui::Begin("Gradient thing", &window);
-    //if (beg) {
-    // std::cout << "stuff breaks at 223" << std::endl;
-    bool application_not_closed = true;
-    //float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor());
-    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "Chromatic gradient generator thing", nullptr, nullptr);
-    if (window == nullptr)
-        return 1;
-    glfwMakeContextCurrent(window);
-    glfwSwapInterval(1);
-    //IMGUI_CHECKVERSION(); //this might be more important than I realize. but cant run with it so currently ignoring. 
-    ImGui::CreateContext();
-    // std::cout << "context created" << std::endl;
-    ImGuiIO& io = ImGui::GetIO(); (void)io;
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    ImGui::StyleColorsDark();
-    ImGuiStyle& style = ImGui::GetStyle();
-    //style.ScaleAllSizes(1);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    //style.FontScaleDpi = 1; //will need to implement my own scaling at some point. currently just ignoring it.
-    ImGui_ImplGlfw_InitForOpenGL(window, true);
-
-
-    #ifdef __EMSCRIPTEN__
-        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
-    #endif
-        ImGui_ImplOpenGL3_Init(glsl_version);
-
-
-    // std::cout << "created glfw window" << std::endl;
-
-
-    bool show_demo_window = true;
-    bool show_another_window = false;
-    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-    static float f = 30.0f;
-    static int iHeight = 256;
-    static int iWidth = 256;
-    static int iDepth = 256;
-    static int i3 = 60;
-    static int i4 = 8;
-    static int noisemod = 42;
-    static float fs = 1.0;
-
-    std::future<void> mainlogicthread;
-    Shared state;
-    Grid3 grid;
-    AnimationConfig config;
-    previewText = "Please generate";
-    int gradnoise = true;
-    while (!glfwWindowShouldClose(window)) {
-        glfwPollEvents();
-
-        // Start the Dear ImGui frame
-        ImGui_ImplOpenGL3_NewFrame();
-        ImGui_ImplGlfw_NewFrame();
-        ImGui::NewFrame();
-        {
-
-            ImGui::Begin("settings");
-
-            ImGui::SliderFloat("fps", &f, 20.0f, 60.0f);
-            ImGui::SliderInt("width", &iHeight, 64, 4096);
-            ImGui::SliderInt("height", &iWidth, 64, 4096);
-            ImGui::SliderInt("depth", &iDepth, 64, 4096);
-            ImGui::SliderInt("frame count", &i3, 10, 1024);
-            ImGui::SliderInt("number of Seeds", &i4, 1, 10);
-            ImGui::SliderInt("Noise Mod", &noisemod, 0, 1000);
-            ImGui::SliderFloat("Scale Preview", &fs, 0.0, 2.0);
-            ImGui::RadioButton("Gradient", &gradnoise, 0);
-            ImGui::RadioButton("Perlin Noise", &gradnoise, 1);
-
-            if (isGenerating) {
-                ImGui::BeginDisabled();
-            }
-            
-            if (ImGui::Button("Generate Animation")) {
-                config = AnimationConfig(iHeight, iWidth, iDepth, i3, f, i4, noisemod);
-                mainlogicthread = std::async(std::launch::async, mainLogic, config, std::ref(state), gradnoise);
-            }
-
-            if (isGenerating && textu != 0) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid, config);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * fs, config.height * fs);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else if (isGenerating) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid, config);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-
-            } else if (textu != 0){
-                //ImGui::EndDisabled();
-                                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * 0.5f, config.height * 0.5f);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else {
-                ImGui::Text("No preview available");
-                ImGui::Text("Start generation to see live preview");
-            }
-            //std::cout << "sleeping" << std::endl;
-            std::this_thread::sleep_for(std::chrono::milliseconds(100));
-            //std::cout << "ending" << std::endl;
-            ImGui::End();
-        }
-
-        
-        // std::cout << "ending frame" << std::endl;
-        ImGui::Render();
-        int display_w, display_h;
-        glfwGetFramebufferSize(window, &display_w, &display_h);
-        glViewport(0, 0, display_w, display_h);
-        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
-        glClear(GL_COLOR_BUFFER_BIT);
-        
-        // std::cout << "rendering" << std::endl;
-        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-        glfwSwapBuffers(window);
-        //mainlogicthread.join();
-        
-        // std::cout << "swapping buffers" << std::endl;
-    }
-    cancelGeneration();
-
-    
-    // std::cout << "shutting down" << std::endl;
-    ImGui_ImplOpenGL3_Shutdown();
-    ImGui_ImplGlfw_Shutdown();
-    ImGui::DestroyContext();
-
-    // std::cout << "destroying" << std::endl;
-    glfwDestroyWindow(window);
-    if (textu != 0) {
-        glDeleteTextures(1, &textu);
-        textu = 0;
-    }
-    glfwTerminate();
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-    
-    // std::cout << "printing" << std::endl;
-    return 0;
-}

tests/g3etest.cpp

@@ -0,0 +1,874 @@
+#include <map>
+#include <iostream>
+#include <vector>
+#include <chrono>
+#include <thread>
+#include <atomic>
+#include <mutex>
+#include <cmath>
+#include <random>
+#include <algorithm>
+
+#include "../util/grid/grid3eigen.hpp"
+#include "../util/output/bmpwriter.hpp"
+#include "../util/output/frame.hpp"
+#include "../util/timing_decorator.cpp"
+#include "../util/noise/pnoise2.hpp"
+#include "../util/noise/pnoise.cpp"
+#include "../util/output/aviwriter.hpp"
+#include "fluidsim.cpp"
+
+#include "../imgui/imgui.h"
+#include "../imgui/backends/imgui_impl_glfw.h"
+#include "../imgui/backends/imgui_impl_opengl3.h"
+#include <GLFW/glfw3.h>
+#include "../stb/stb_image.h"
+
+struct defaults {
+    int outWidth = 512;
+    int outHeight = 512;
+    int gridSizecube = 10000;
+    bool slowRender = false;
+    bool globalIllumination = true;
+    bool useLod = true;
+    int rayCount = 5;
+    int reflectCount = 3;
+    int lodDist = 50000;
+    float lodDropoff = 0.1;
+    PNoise2 noise = PNoise2(42);
+    
+    int meshResolution = 16;
+    float meshIsoLevel = 0.4f;
+};
+
+struct spheredefaults {
+    float centerX = 0.0f;
+    float centerY = 0.0f;
+    float centerZ = 0.0f;
+    float radius = 1024.0f;
+    float color[3] = {0.0f, 1.0f, 0.0f};
+    bool light = false;
+    float emittance = 0.0f;
+    float reflection = 0.0f;
+    float refraction = 0.0f;
+    bool fillInside = false;
+    float voxelSize = 10.f;
+};
+
+struct stardefaults {
+    float x = 3000.0f;
+    float y = 0.0f; 
+    float z = 0.0f;
+    
+    float color[3] = {1.0f, 0.95f, 0.8f};
+    float emittance = 1000.0f;
+    float size = 1000.0f;
+    bool enabled = true;
+};
+
+std::mutex PreviewMutex;
+GLuint textu = 0;
+bool textureInitialized = false;
+bool updatePreview = false;
+bool previewRequested = false;
+using PointType = Eigen::Matrix<float, 3, 1>;
+
+// Render FPS tracking variables
+double renderFrameTime = 0.0;
+double avgRenderFrameTime = 0.0;
+double renderFPS = 0.0;
+const int FRAME_HISTORY_SIZE = 60;
+std::vector<double> renderFrameTimes;
+int frameHistoryIndex = 0;
+bool firstFrameMeasured = false;
+
+// Stats update timer
+std::chrono::steady_clock::time_point lastStatsUpdate;
+const std::chrono::seconds STATS_UPDATE_INTERVAL(10);
+std::string cachedStats;
+bool statsNeedUpdate = true;
+
+Scene scene;
+bool meshNeedsUpdate = false;
+
+void createSphere(const defaults& config, const spheredefaults& sconfig, Octree<int>& grid) {
+    if (!grid.empty()) grid.clear();
+
+    Eigen::Vector3f colorVec(sconfig.color[0], sconfig.color[1], sconfig.color[2]);
+    Eigen::Vector3f center(sconfig.centerX, sconfig.centerY, sconfig.centerZ);
+    
+    float voxelSize = sconfig.voxelSize;
+    float radius = sconfig.radius;
+    
+    // Calculate how many voxels fit in the diameter
+    int voxelsPerDiameter = static_cast<int>(2.0f * radius / voxelSize);
+    if (voxelsPerDiameter < 1) voxelsPerDiameter = 1;
+    
+    // Create a 3D grid that covers the sphere's bounding box
+    for (int i = 0; i <= voxelsPerDiameter; i++) {
+        for (int j = 0; j <= voxelsPerDiameter; j++) {
+            for (int k = 0; k <= voxelsPerDiameter; k++) {
+                // Calculate position in the grid
+                float x = center.x() - radius + i * voxelSize;
+                float y = center.y() - radius + j * voxelSize;
+                float z = center.z() - radius + k * voxelSize;
+                
+                Eigen::Vector3f pos(x, y, z);
+                
+                // Calculate distance from center
+                float dist = (pos - center).norm();
+                
+                // For solid sphere: include all points within radius
+                if (dist <= radius + voxelSize * 0.5f) {
+                    // Optional: For better surface quality, adjust surface points
+                    if (dist > radius - voxelSize * 0.5f) {
+                        // This is a surface voxel, adjust to exactly on surface
+                        if (dist > 0.001f) {
+                            pos = center + (pos - center).normalized() * radius;
+                        }
+                    }
+                    
+                    if (pos.x() >= 0 && pos.x() < config.gridSizecube &&
+                        pos.y() >= 0 && pos.y() < config.gridSizecube &&
+                        pos.z() >= 0 && pos.z() < config.gridSizecube) {
+                        
+                        grid.set(1, pos, true, colorVec, voxelSize, true, 1,
+                                    sconfig.light, sconfig.emittance, sconfig.refraction, sconfig.reflection);
+                    }
+                }
+            }
+        }
+    }
+    
+    // If we want a truly solid sphere without gaps, we need a second pass
+    if (sconfig.fillInside) {
+        // Scan for potential gaps in the interior
+        int interiorSteps = static_cast<int>(radius / voxelSize);
+        float interiorStep = voxelSize * 0.5f; // Half-step for gap checking
+        
+        for (int i = 0; i <= interiorSteps * 2; i++) {
+            for (int j = 0; j <= interiorSteps * 2; j++) {
+                for (int k = 0; k <= interiorSteps * 2; k++) {
+                    Eigen::Vector3f pos(
+                        center.x() - radius + i * interiorStep,
+                        center.y() - radius + j * interiorStep,
+                        center.z() - radius + k * interiorStep
+                    );
+                    
+                    float dist = (pos - center).norm();
+                    
+                    // If deep inside the sphere
+                    if (dist < radius * 0.8f) {
+                        // Check if position is valid
+                        if (pos.x() >= 0 && pos.x() < config.gridSizecube &&
+                            pos.y() >= 0 && pos.y() < config.gridSizecube &&
+                            pos.z() >= 0 && pos.z() < config.gridSizecube) {
+                            
+                            // Try to add the point
+                            grid.set(1, pos, true, colorVec, voxelSize, true, 1,
+                                     sconfig.light, sconfig.emittance, sconfig.refraction, sconfig.reflection);
+                        }
+                    }
+                }
+            }
+        }
+    }
+    std::cout << "voxel grid ready" << std::endl;
+    meshNeedsUpdate = true;
+}
+
+void addStar(const defaults& config, const stardefaults& starconf, Octree<int>& grid) {
+    if (!starconf.enabled) return;
+
+    Eigen::Vector3f colorVec(starconf.color[0], starconf.color[1], starconf.color[2]);
+    PointType pos(starconf.x, starconf.y, starconf.z);
+
+    grid.set(2, pos, true, colorVec, starconf.size, true, 2, true, starconf.emittance, 0.0f, 0.0f);
+    
+    meshNeedsUpdate = true;
+}
+
+void updateStatsCache(Octree<int>& grid) {
+    std::stringstream gridstats;
+    grid.printStats(gridstats);
+    cachedStats = gridstats.str();
+    lastStatsUpdate = std::chrono::steady_clock::now();
+    statsNeedUpdate = false;
+}
+
+void livePreview(Octree<int>& grid, defaults& config, const Camera& cam) {
+    std::lock_guard<std::mutex> lock(PreviewMutex);
+    updatePreview = true;
+
+    
+    // if (meshNeedsUpdate) {
+    //     scene.clear();
+    //     std::shared_ptr<Mesh> planetMesh = grid.generateMesh(1, config.meshIsoLevel, pow(config.meshResolution, 2));
+    //     std::shared_ptr<Mesh> starMesh = grid.generateMesh(2, config.meshIsoLevel, config.meshResolution);
+
+    //     scene.addMesh(planetMesh);
+    //     scene.addMesh(starMesh);
+        
+    //     // planetMesh.setResolution(config.meshResolution);
+    //     // planetMesh.setIsoLevel(config.meshIsoLevel);
+    //     // planetMesh.update(grid);
+    //     meshNeedsUpdate = false;
+    // }
+
+    auto renderStart = std::chrono::high_resolution_clock::now();
+    frame currentPreviewFrame;
+
+    // currentPreviewFrame = scene.render(cam, config.outWidth, config.outHeight, 0.1f, 10000.0f, frame::colormap::RGB);
+    
+    grid.setLODMinDistance(config.lodDist);
+    grid.setLODFalloff(config.lodDropoff);
+    if (config.slowRender) {
+        currentPreviewFrame = grid.renderFrame(cam, config.outWidth, config.outHeight, frame::colormap::RGB, config.rayCount, config.reflectCount, config.globalIllumination, config.useLod);
+    } else {
+        currentPreviewFrame = grid.fastRenderFrame(cam, config.outWidth, config.outHeight, frame::colormap::RGB);
+    }
+    
+    auto renderEnd = std::chrono::high_resolution_clock::now();
+    renderFrameTime = std::chrono::duration<double>(renderEnd - renderStart).count();
+    
+    if (!firstFrameMeasured) {
+        renderFrameTimes.resize(FRAME_HISTORY_SIZE, renderFrameTime);
+        firstFrameMeasured = true;
+    }
+    
+    renderFrameTimes[frameHistoryIndex] = renderFrameTime;
+    frameHistoryIndex = (frameHistoryIndex + 1) % FRAME_HISTORY_SIZE;
+    
+    avgRenderFrameTime = 0.0;
+    int validFrames = 0;
+    for (int i = 0; i < FRAME_HISTORY_SIZE; i++) {
+        if (renderFrameTimes[i] > 0) {
+            avgRenderFrameTime += renderFrameTimes[i];
+            validFrames++;
+        }
+    }
+    if (validFrames > 0) {
+        avgRenderFrameTime /= validFrames;
+        renderFPS = 1.0 / avgRenderFrameTime;
+    }
+    
+    auto now = std::chrono::steady_clock::now();
+    if (textu == 0) {
+        glGenTextures(1, &textu);
+    }
+    glBindTexture(GL_TEXTURE_2D, textu);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    
+    glBindTexture(GL_TEXTURE_2D, textu);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
+                 0, GL_RGB, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
+    
+    updatePreview = false;
+    textureInitialized = true;
+}
+
+void resetView(Camera& cam, float gridSize) {
+    cam.origin = Vector3f(gridSize, gridSize, gridSize);
+    Vector3f center(gridSize / 2.0f, gridSize / 2.0f, gridSize / 2.0f);
+    cam.lookAt(center);
+}
+
+static void glfw_error_callback(int error, const char* description)
+{
+    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
+}
+
+int main() {
+    glfwSetErrorCallback(glfw_error_callback);
+    if (!glfwInit()) {
+        std::cerr << "gui stuff is dumb in c++." << std::endl;
+        glfwTerminate();
+        return 1;
+    }
+    // COPIED VERBATIM FROM IMGUI.
+    #if defined(IMGUI_IMPL_OPENGL_ES2)
+        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
+        const char* glsl_version = "#version 100";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+    #elif defined(IMGUI_IMPL_OPENGL_ES3)
+        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
+        const char* glsl_version = "#version 300 es";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+    #elif defined(__APPLE__)
+        // GL 3.2 + GLSL 150
+        const char* glsl_version = "#version 150";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
+    #else
+        // GL 3.0 + GLSL 130
+        const char* glsl_version = "#version 130";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
+    #endif
+
+    bool application_not_closed = true;
+    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "StupidSim", nullptr, nullptr);
+    if (window == nullptr) {
+        glfwTerminate();
+        return 1;
+    }
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1);    
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO();
+    (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+    ImGui::StyleColorsDark();
+    ImGuiStyle& style = ImGui::GetStyle();
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+
+    #ifdef __EMSCRIPTEN__
+        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
+    #endif
+    ImGui_ImplOpenGL3_Init(glsl_version);
+
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    defaults config;
+    PointType minBound(-config.gridSizecube, -config.gridSizecube, -config.gridSizecube);
+    PointType maxBound(config.gridSizecube, config.gridSizecube, config.gridSizecube);
+    Octree<int> grid(minBound, maxBound, 8, 32);
+    bool gridInitialized = false;
+    float ghalf = config.gridSizecube / 2.f;
+    
+    spheredefaults sphereConf;
+    stardefaults starConf;
+    
+    // Initialize Noise Preview State
+    NoisePreviewState noiseState;
+    NoiseLayer l1;
+    l1.type = NoiseType::Fractal;
+    l1.blend = BlendMode::Add; // Start with base
+    l1.scale = 0.005f;
+    strcpy(l1.name, "Continents");
+    noiseState.layers.push_back(l1);
+
+    updateNoiseTexture(noiseState);
+
+    FluidSimUI fluidUI;
+    bool showFluidSim = false;
+
+    sphereConf.centerX = ghalf;
+    sphereConf.centerY = ghalf;
+    sphereConf.centerZ = ghalf;
+
+    bool autoRotate = false;
+    bool autoRotateView = false;
+    bool orbitEquator = false;
+    bool orbitPoles = false;
+    
+    float rotationSpeedX = 0.1f;
+    float rotationSpeedY = 0.07f;
+    float rotationSpeedZ = 0.05f;
+    float autoRotationTime = 0.0f;
+    PointType initialViewDir(0, 0, 1);
+    float rotationRadius = 2000.0f;
+    float yawSpeed = 0.5f;
+    float pitchSpeed = 0.3f;
+    float rollSpeed = 0.2f;
+    float autoRotationAngle = 0.0f;
+    PointType initialUpDir(0, 1, 0);
+    float camX = 0.0f;
+    float camY = 0.0f;
+    float camZ = 0.0f;
+    float camvX = 0.f;
+    float camvY = 0.f;
+    float camvZ = 0.f;
+    float camspeed = 50;
+    Camera cam(PointType(400, 400, 400), PointType(0,0,1), PointType(0,1,0), 80, camspeed);
+
+    std::map<int, bool> keyStates;
+    bool mouseCaptured = false;
+    double lastMouseX = 0, lastMouseY = 0;
+    float deltaTime = 0.016f;
+    renderFrameTimes.resize(FRAME_HISTORY_SIZE, 0.0);
+    
+    bool worldPreview = false;
+    
+    if (grid.load("output/Treegrid.yggs")) {
+        gridInitialized = true;
+        resetView(cam, config.gridSizecube);
+        meshNeedsUpdate = true;
+    }
+    
+    while (!glfwWindowShouldClose(window)) {
+        double currentTime = glfwGetTime();
+        static double lastFrameTime = currentTime;
+        deltaTime = currentTime - lastFrameTime;
+        lastFrameTime = currentTime;
+
+        if (showFluidSim) {
+            fluidUI.update();
+        }
+        
+        if (orbitEquator || orbitPoles || autoRotate) autoRotationTime += deltaTime;
+        if (autoRotateView) autoRotationAngle += deltaTime;
+
+        glfwPollEvents();
+        
+        for (int i = GLFW_KEY_SPACE; i <= GLFW_KEY_LAST; i++) {
+            keyStates[i] = (glfwGetKey(window, i) == GLFW_PRESS);
+        }
+        
+        // Camera movement - WASD + QE + ZX
+        float actualMoveSpeed = deltaTime;
+        float actualRotateSpeed = deltaTime;
+        
+        if (keyStates[GLFW_KEY_W]) {
+            cam.moveForward(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_S]) {
+            cam.moveBackward(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_A]) {
+            cam.moveLeft(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_D]) {
+            cam.moveRight(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_Z]) {
+            cam.moveUp(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_X]) {
+            cam.moveDown(actualMoveSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_Q]) {
+            cam.rotateYaw(actualRotateSpeed);
+            previewRequested = true;
+        }
+        if (keyStates[GLFW_KEY_R]) {
+            cam.rotateYaw(-actualRotateSpeed);
+            previewRequested = true;
+        }
+        
+        float cx = sphereConf.centerX;
+        float cy = sphereConf.centerY;
+        float cz = sphereConf.centerZ;
+
+        if (orbitEquator || orbitPoles) {
+            float speed = 0.5f;
+            float angle = autoRotationTime * speed;
+            
+            if (orbitEquator) {
+                cam.origin[0] = cx + rotationRadius * cosf(angle);
+                cam.origin[1] = cy;
+                cam.origin[2] = cz + rotationRadius * sinf(angle);
+            } else {
+                cam.origin[0] = cx;
+                cam.origin[1] = cy + rotationRadius * cosf(angle);
+                cam.origin[2] = cz + rotationRadius * sinf(angle);
+            }
+            
+            PointType target(cx, cy, cz);
+            cam.direction = (target - cam.origin).normalized();
+            previewRequested = true;
+        }
+
+        // Update camera position and view direction variables for UI
+        camX = cam.origin[0];
+        camY = cam.origin[1];
+        camZ = cam.origin[2];
+        
+        camvX = cam.direction[0];
+        camvY = cam.direction[1];
+        camvZ = cam.direction[2];
+        camspeed = cam.movementSpeed;
+        
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+        
+        {
+            ImGui::Begin("Sim Controls");
+            
+            ImGui::Text("Planet");
+            float pos[3] = { sphereConf.centerX, sphereConf.centerY, sphereConf.centerZ };
+            if (ImGui::DragFloat3("Center (X,Y,Z)", pos, 1.0f, 0.0f, (float)config.gridSizecube)) {
+                sphereConf.centerX = pos[0];
+                sphereConf.centerY = pos[1];
+                sphereConf.centerZ = pos[2];
+            }
+            ImGui::DragFloat("Radius", &sphereConf.radius, 0.5f, 1.0f, 250.0f);
+            ImGui::DragFloat("Density (Overlap)", &sphereConf.voxelSize, 0.1f, 1.0f, 100.0f);
+            if (ImGui::IsItemHovered()) {
+                ImGui::SetTooltip("Multiplies calculated point size. >1.0 ensures solid surface.");
+            }
+            ImGui::ColorEdit3("Color", sphereConf.color);
+            
+            ImGui::Separator();
+            // ImGui::Text("Marching Cubes Config");
+            // if (ImGui::SliderInt("Mesh Resolution", &config.meshResolution, 1, 64)) {
+            //     meshNeedsUpdate = true;
+            // }
+            // if (ImGui::SliderFloat("Iso Level", &config.meshIsoLevel, 0.01f, 1.0f)) {
+            //     meshNeedsUpdate = true;
+            // }
+
+            // ImGui::Separator();
+            // ImGui::Checkbox("Is Light", &sphereConf.light);
+            if(sphereConf.light) {
+                ImGui::DragFloat("Emittance", &sphereConf.emittance, 0.1f, 0.0f, 100.0f);
+            }
+            ImGui::SliderFloat("Reflection", &sphereConf.reflection, 0.0f, 1.0f);
+            ImGui::SliderFloat("Refraction", &sphereConf.refraction, 0.0f, 1.0f);
+            ImGui::Checkbox("Fill Inside", &sphereConf.fillInside);
+
+            if (ImGui::CollapsingHeader("Star/Sun Parameters", ImGuiTreeNodeFlags_DefaultOpen)) {
+                ImGui::Checkbox("Enable Star", &starConf.enabled);
+                
+                // Allow large range for position to place it "far away"
+                float starPos[3] = { starConf.x, starConf.y, starConf.z };
+                if (ImGui::DragFloat3("Position", starPos, 5.0f, -2000.0f, 2000.0f)) {
+                    starConf.x = starPos[0];
+                    starConf.y = starPos[1];
+                    starConf.z = starPos[2];
+                }
+
+                ImGui::DragFloat("Size (Radius)", &starConf.size, 1.0f, 1.0f, 1000.0f);
+                ImGui::DragFloat("Brightness", &starConf.emittance, 1.0f, 0.0f, 1000.0f);
+                ImGui::ColorEdit3("Light Color", starConf.color);
+            }
+
+            ImGui::Separator();
+            
+            if (ImGui::Button("Create Sphere & Render")) {
+                createSphere(config, sphereConf, grid);
+                addStar(config, starConf, grid); 
+                gridInitialized = true;
+                scene.updateStats();
+                
+                resetView(cam, config.gridSizecube);
+                grid.generateLODs();
+                livePreview(grid, config, cam);
+                ImGui::Image((void*)(intptr_t)textu, ImVec2(config.outWidth, config.outHeight));
+                
+            }
+
+            ImGui::Separator();
+            ImGui::Text("Modules");
+            ImGui::Checkbox("Fluid Simulation", &showFluidSim);
+            
+            ImGui::End();
+        }
+
+        if (showFluidSim) {
+            fluidUI.renderUI();
+        }
+
+        // scene.drawSceneWindow("Planet Preview", cam, 0.01, 1000);
+        // scene.drawGridStats();
+
+        {
+            ImGui::Begin("Planet Preview");
+            if (worldPreview) {
+                if (gridInitialized) {
+                    livePreview(grid, config, cam);
+                }
+            }
+
+            if (gridInitialized && textureInitialized) {
+                ImGui::Image((void*)(intptr_t)textu, ImVec2(config.outWidth, config.outHeight));
+            } else if (gridInitialized) {
+                ImGui::Text("Preview not generated yet");
+            } else {
+                ImGui::Text("No grid generated");
+            }
+            
+            ImGui::Text("Render Performance:");
+            if (renderFPS > 0) {
+                // Color code based on FPS
+                ImVec4 fpsColor = ImVec4(1.0f, 1.0f, 0.0f, 1.0f);
+                // if (renderFPS >= 30.0) {
+                //     fpsColor = ImVec4(0.0f, 1.0f, 0.0f, 1.0f); // Green for good FPS
+                // } else if (renderFPS >= 15.0) {
+                //     fpsColor = ImVec4(1.0f, 1.0f, 0.0f, 1.0f); // Yellow for okay FPS
+                // } else {
+                //     fpsColor = ImVec4(1.0f, 0.0f, 0.0f, 1.0f); // Red for poor FPS
+                // }
+                
+                ImGui::TextColored(fpsColor, "FPS: %.1f", renderFPS);
+                ImGui::Text("Frame time: %.1f ms", avgRenderFrameTime * 1000.0);
+                
+                // Simple progress bar for frame time
+                ImGui::Text("%.1f/100 ms", avgRenderFrameTime * 1000.0);
+                
+                // Show latest frame time
+                ImGui::Text("Latest: %.1f ms", renderFrameTime * 1000.0);
+            }
+            
+            ImGui::Separator();
+
+            if (gridInitialized) {
+                auto now = std::chrono::steady_clock::now();
+                if ((now - lastStatsUpdate) > STATS_UPDATE_INTERVAL) updateStatsCache(grid);
+                ImGui::TextUnformatted(cachedStats.c_str());
+            }
+            ImGui::End();
+        }
+
+        {
+            ImGui::Begin("controls");
+
+            ImGui::Separator();
+            ImGui::Text("Camera Controls:");
+            
+            float maxSliderValueX = config.gridSizecube;
+            float maxSliderValueY = config.gridSizecube;
+            float maxSliderValueZ = config.gridSizecube;
+            
+            ImGui::Text("Position (0 to grid size):");
+            if (ImGui::SliderFloat("Camera X", &camX, -maxSliderValueX, maxSliderValueX)) {
+                cam.origin[0] = camX;
+            }
+            if (ImGui::SliderFloat("Camera Y", &camY, -maxSliderValueY, maxSliderValueY)) {
+                cam.origin[1] = camY;
+            }
+            if (ImGui::SliderFloat("Camera Z", &camZ, -maxSliderValueZ, maxSliderValueZ)) {
+                cam.origin[2] = camZ;
+            }
+            
+            ImGui::Separator();
+            ImGui::Text("View Direction:");
+            if (ImGui::SliderFloat("Camera View X", &camvX, -1.0f, 1.0f)) {
+                cam.direction[0] = camvX;
+            }
+            if (ImGui::SliderFloat("Camera View Y", &camvY, -1.0f, 1.0f)) {
+                cam.direction[1] = camvY;
+            }
+            if (ImGui::SliderFloat("Camera View Z", &camvZ, -1.0f, 1.0f)) {
+                cam.direction[2] = camvZ;
+            }
+
+            if (ImGui::SliderFloat("Camera Speed", &camspeed, 1, 500)) {
+                cam.movementSpeed = camspeed;
+            }
+            
+            ImGui::Separator();
+            
+            if (ImGui::Button("Focus on Planet")) {
+                PointType target(sphereConf.centerX, sphereConf.centerY, sphereConf.centerZ);
+                PointType newDir = (target - cam.origin).normalized();
+                cam.direction = newDir;
+                camvX = newDir[0];
+                camvY = newDir[1];
+                camvZ = newDir[2];
+                previewRequested = true;
+            }
+            
+            ImGui::SameLine();
+            
+            // Equator Orbit
+            if (ImGui::Button(orbitEquator ? "Stop Equator" : "Orbit Equator")) {
+                orbitEquator = !orbitEquator;
+                if (orbitEquator) {
+                    orbitPoles = false;
+                    autoRotate = false;
+                    autoRotationTime = 0.0f;
+                }
+            }
+
+            ImGui::SameLine();
+            
+            // Polar Orbit
+            if (ImGui::Button(orbitPoles ? "Stop Poles" : "Orbit Poles")) {
+                orbitPoles = !orbitPoles;
+                if (orbitPoles) {
+                    orbitEquator = false;
+                    autoRotate = false;
+                    autoRotationTime = 0.0f;
+                }
+            }
+
+            ImGui::Separator();
+            ImGui::Text("Current Camera Position:");
+            ImGui::Text("X: %.2f, Y: %.2f, Z: %.2f", cam.origin[0], cam.origin[1], cam.origin[2]);
+
+            ImGui::Text("Auto-Rotation:");
+            
+            // Toggle button for auto-rotation
+            if (ImGui::Button(autoRotate ? "Stop random Rotate" : "Start random Rotate")) {
+                autoRotate = !autoRotate;
+                if (autoRotate) {
+                    orbitEquator = false;
+                    orbitPoles = false;
+                    autoRotationTime = 0.0f;
+                    initialViewDir = PointType(camvX, camvY, camvZ);
+                }
+            }
+
+            if (ImGui::Button(autoRotateView ? "Stop Looking Around" : "Start Looking Around")) {
+                autoRotateView = !autoRotateView;
+                if (autoRotateView) {
+                    autoRotationAngle = 0.0f;
+                    initialViewDir = PointType(camvX, camvY, camvZ);
+                }
+            }
+
+            if (autoRotate) {
+                ImGui::SameLine();
+                ImGui::Text("(Running)");
+                
+                // Calculate new view direction using frame-based timing
+                float angleX = autoRotationTime * rotationSpeedX;
+                float angleY = autoRotationTime * rotationSpeedY;
+                float angleZ = autoRotationTime * rotationSpeedZ;
+                
+                camvX = sinf(angleX) * cosf(angleY);
+                camvY = sinf(angleY) * sinf(angleZ);
+                camvZ = cosf(angleX) * cosf(angleZ);
+                
+                // Normalize
+                float length = sqrtf(camvX * camvX + camvY * camvY + camvZ * camvZ);
+                if (length > 0.001f) {
+                    camvX /= length;
+                    camvY /= length;
+                    camvZ /= length;
+                }
+                
+                // Update camera position
+                camX = config.gridSizecube / 2.0f + rotationRadius * camvX;
+                camY = config.gridSizecube / 2.0f + rotationRadius * camvY;
+                camZ = config.gridSizecube / 2.0f + rotationRadius * camvZ;
+                
+                // Update camera
+                cam.origin = PointType(camX, camY, camZ);
+                cam.direction = PointType(camvX, camvY, camvZ);
+                cam.lookAt(PointType(sphereConf.centerX, sphereConf.centerY, sphereConf.centerZ));
+
+                // Sliders to control rotation speeds
+                ImGui::SliderFloat("X Speed", &rotationSpeedX, 0.01f, 1.0f);
+                ImGui::SliderFloat("Y Speed", &rotationSpeedY, 0.01f, 1.0f);
+                ImGui::SliderFloat("Z Speed", &rotationSpeedZ, 0.01f, 1.0f);
+            }
+            
+            // Slider for orbit radius
+            ImGui::SliderFloat("Orbit Radius", &rotationRadius, 10.0f, 5000.0f);
+
+            if (autoRotateView) {
+                ImGui::SameLine();
+                ImGui::TextColored(ImVec4(0, 1, 0, 1), " ACTIVE");
+                
+                // Calculate rotation angles using frame-based timing
+                float yaw = autoRotationAngle * yawSpeed * (3.14159f / 180.0f);
+                float pitch = sinf(autoRotationAngle * 0.7f) * pitchSpeed * (3.14159f / 180.0f);
+                
+                // Apply rotations
+                PointType forward = initialViewDir;
+                
+                // Yaw rotation (around Y axis)
+                float cosYaw = cosf(yaw);
+                float sinYaw = sinf(yaw);
+                PointType tempForward;
+                tempForward[0] = forward[0] * cosYaw + forward[2] * sinYaw;
+                tempForward[1] = forward[1];
+                tempForward[2] = -forward[0] * sinYaw + forward[2] * cosYaw;
+                forward = tempForward;
+                
+                // Pitch rotation (around X axis)
+                float cosPitch = cosf(pitch);
+                float sinPitch = sinf(pitch);
+                tempForward[0] = forward[0];
+                tempForward[1] = forward[1] * cosPitch - forward[2] * sinPitch;
+                tempForward[2] = forward[1] * sinPitch + forward[2] * cosPitch;
+                forward = tempForward;
+                
+                // Normalize
+                float length = sqrtf(forward[0] * forward[0] + forward[1] * forward[1] + forward[2] * forward[2]);
+                if (length > 0.001f) {
+                    forward[0] /= length;
+                    forward[1] /= length;
+                    forward[2] /= length;
+                }
+                
+                // Update view direction
+                camvX = forward[0];
+                camvY = forward[1];
+                camvZ = forward[2];
+                
+                // Update camera
+                cam.direction = PointType(camvX, camvY, camvZ);
+                
+                // Show current view direction
+                ImGui::Text("Current View: (%.3f, %.3f, %.3f)", camvX, camvY, camvZ);
+                
+                // Sliders to control rotation speeds
+                ImGui::SliderFloat("Yaw Speed", &yawSpeed, 0.1f, 5.0f, "%.2f deg/sec");
+                ImGui::SliderFloat("Pitch Speed", &pitchSpeed, 0.0f, 2.0f, "%.2f deg/sec");
+            }
+
+            ImGui::Separator();
+
+            // ImGui::Checkbox("Continuous Preview", &worldPreview);
+
+            ImGui::Checkbox("update Preview", &worldPreview);
+            ImGui::Checkbox("Use Slower renderer", &config.slowRender);
+            if (config.slowRender) {
+                ImGui::InputInt("Rays per pixel", &config.rayCount);
+                ImGui::InputInt("Max reflections", &config.reflectCount);
+            }
+            ImGui::InputFloat("Lod dropoff", &config.lodDropoff);
+            ImGui::InputInt("lod minimum Distance", &config.lodDist);
+            ImGui::Checkbox("use Global illumination", &config.globalIllumination);
+            ImGui::Checkbox("use Lod", &config.useLod);
+
+            ImGui::End();
+        }
+        
+        drawNoiseLab(noiseState);
+
+        ImGui::Render();
+        int display_w, display_h;
+        glfwGetFramebufferSize(window, &display_w, &display_h);
+        glViewport(0, 0, display_w, display_h);
+        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
+        glClear(GL_COLOR_BUFFER_BIT);
+        
+        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+        glfwSwapBuffers(window);
+    }
+    
+    // Cleanup
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    ImGui::DestroyContext();
+
+    grid.save("output/Treegrid.yggs");
+    
+    glfwDestroyWindow(window);
+    if (textu != 0) {
+        glDeleteTextures(1, &textu);
+        textu = 0;
+    }
+    if (noiseState.textureId != 0) {
+        glDeleteTextures(1, &noiseState.textureId);
+        noiseState.textureId = 0;
+    }
+    glfwTerminate();
+    
+    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
+    
+    return 0;
+}

tests/materialtest.cpp

@@ -0,0 +1,195 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <cmath>
+
+// Include Eigen and project headers
+#include "../eigen/Eigen/Dense" 
+#include "../util/grid/camera.hpp"
+#include "../util/grid/grid3eigen.hpp"
+#include "../util/output/frame.hpp"
+#include "../util/output/bmpwriter.hpp"
+
+// Helper function to create a solid volume of voxels with material properties
+void createBox(Octree<int>& octree, const Eigen::Vector3f& center, const Eigen::Vector3f& size, 
+               const Eigen::Vector3f& albedo, float emission = 0.0f,
+               float roughness = 0.8f, float metallic = 0.0f, float transmission = 0.0f, float ior = 1.45f) {
+    float step = 0.1f; // Voxel spacing
+    Eigen::Vector3f halfSize = size / 2.0f;
+    Eigen::Vector3f minB = center - halfSize;
+    Eigen::Vector3f maxB = center + halfSize;
+    
+    for (float x = minB.x(); x <= maxB.x(); x += step) {
+        for (float y = minB.y(); y <= maxB.y(); y += step) {
+            for (float z = minB.z(); z <= maxB.z(); z += step) {
+                Eigen::Vector3f pos(x, y, z);
+                
+                // .set(data, pos, visible, albedo, size, active, objectId, subId, emission, roughness, metallic, transmission, ior)
+                octree.set(1, pos, true, albedo, step, true, -1, 0, emission, roughness, metallic, transmission, ior);
+            }
+        }
+    }
+}
+
+// Helper function to create a checkerboard pattern volume
+void createCheckerBox(Octree<int>& octree, const Eigen::Vector3f& center, const Eigen::Vector3f& size, 
+                      const Eigen::Vector3f& color1, const Eigen::Vector3f& color2, float checkerSize) {
+    float step = 0.1f;
+    Eigen::Vector3f halfSize = size / 2.0f;
+    Eigen::Vector3f minB = center - halfSize;
+    Eigen::Vector3f maxB = center + halfSize;
+    
+    for (float x = minB.x(); x <= maxB.x(); x += step) {
+        for (float y = minB.y(); y <= maxB.y(); y += step) {
+            for (float z = minB.z(); z <= maxB.z(); z += step) {
+                Eigen::Vector3f pos(x, y, z);
+                
+                // Use floor to correctly handle negative coordinates for the repeating pattern
+                int cx = static_cast<int>(std::floor(x / checkerSize));
+                int cy = static_cast<int>(std::floor(y / checkerSize));
+                int cz = static_cast<int>(std::floor(z / checkerSize));
+                
+                // 3D Checkerboard logic
+                bool isEven = ((cx + cy + cz) % 2 == 0);
+                Eigen::Vector3f albedo = isEven ? color1 : color2;
+                
+                octree.set(1, pos, true, albedo, step, true, -1, 0, 0.0f, 0.8f, 0.1f, 0.0f, 1.0f);
+            }
+        }
+    }
+}
+
+int main() {
+    std::cout << "Initializing Octree..." << std::endl;
+
+    // 1. Initialize Octree bounds
+    Eigen::Vector3f minBound(-10.0f, -10.0f, -10.0f);
+    Eigen::Vector3f maxBound(10.0f, 10.0f, 10.0f);
+    Octree<int> octree(minBound, maxBound, 8, 16);
+    
+    // Set a dark background to emphasize the PBR light emission
+    octree.setBackgroundColor(Eigen::Vector3f(0.02f, 0.02f, 0.02f));
+    octree.setSkylight(Eigen::Vector3f(0.01f, 0.01f, 0.01f));
+
+    std::cout << "Building scene..." << std::endl;
+
+    // 2a. Build Room (Floor and 4 Walls)
+    Eigen::Vector3f cLightGray(0.8f, 0.8f, 0.8f);
+    Eigen::Vector3f cDarkGray(0.2f, 0.2f, 0.2f);
+    float chkSize = 1.0f;
+
+    // Floor (Bounds: Z from -0.7 to -0.5)
+    // The boxes sit exactly on Z = -0.5
+    createCheckerBox(octree, Eigen::Vector3f(0.0f, 0.0f, -0.6f), Eigen::Vector3f(14.4f, 14.4f, 0.2f), cLightGray, cDarkGray, chkSize);
+    
+    // Walls (Bounds: X/Y inner boundaries at +/- 7.0, rising from Z=-0.5 up to Z=7.5)
+    createCheckerBox(octree, Eigen::Vector3f( 7.1f,  0.0f, 3.5f), Eigen::Vector3f(0.2f, 14.4f, 8.0f), cLightGray, cDarkGray, chkSize); // +X
+    createCheckerBox(octree, Eigen::Vector3f(-7.1f,  0.0f, 3.5f), Eigen::Vector3f(0.2f, 14.4f, 8.0f), cLightGray, cDarkGray, chkSize); // -X
+    createCheckerBox(octree, Eigen::Vector3f( 0.0f,  7.1f, 3.5f), Eigen::Vector3f(14.0f, 0.2f, 8.0f), cLightGray, cDarkGray, chkSize); // +Y
+    createCheckerBox(octree, Eigen::Vector3f( 0.0f, -7.1f, 3.5f), Eigen::Vector3f(14.0f, 0.2f, 8.0f), cLightGray, cDarkGray, chkSize); // -Y
+
+    // 2b. Create the 3x3 material sampler grid inside the room
+    Eigen::Vector3f cRed(1.0f, 0.1f, 0.1f);
+    Eigen::Vector3f cBlue(0.1f, 0.1f, 1.0f);
+    Eigen::Vector3f cPurple(0.6f, 0.1f, 0.8f);
+    Eigen::Vector3f size(1.0f, 1.0f, 1.0f);
+
+    float sp = 2.0f; // spacing between cubes
+
+    // --- LAYER 1: Metals ---
+    // (metallic = 1.0, slight roughness for blurry reflections, transmission = 0.0)
+    createBox(octree, Eigen::Vector3f(-sp, -sp, 0.0f), size, cRed,    0.0f, 0.15f, 1.0f, 0.0f, 1.45f);
+    createBox(octree, Eigen::Vector3f(  0, -sp, 0.0f), size, cBlue,   0.0f, 0.15f, 1.0f, 0.0f, 1.45f);
+    createBox(octree, Eigen::Vector3f( sp, -sp, 0.0f), size, cPurple, 0.0f, 0.15f, 1.0f, 0.0f, 1.45f);
+
+    // --- LAYER 2: Opaque & Highly Refractive ---
+    // (metallic = 0.0, very low roughness. transmission = 0.0 for opacity, ior = 2.4 for extreme diamond-like reflection)
+    createBox(octree, Eigen::Vector3f(-sp,  0,  0.0f), size, cRed,    0.0f, 0.05f, 0.0f, 0.0f, 2.4f);
+    createBox(octree, Eigen::Vector3f(  0,  0,  0.0f), size, cBlue,   0.0f, 0.05f, 0.0f, 0.0f, 2.4f);
+    createBox(octree, Eigen::Vector3f( sp,  0,  0.0f), size, cPurple, 0.0f, 0.05f, 0.0f, 0.0f, 2.4f);
+
+    // --- LAYER 3: Clear Glass ---
+    // (metallic = 0.0, near-zero roughness, transmission = 1.0 for full transparency, ior = 1.5 for glass)
+    createBox(octree, Eigen::Vector3f(-sp,  sp, 0.0f), size, cRed,    0.0f, 0.01f, 0.0f, 1.0f, 1.5f);
+    createBox(octree, Eigen::Vector3f(  0,  sp, 0.0f), size, cBlue,   0.0f, 0.01f, 0.0f, 1.0f, 1.5f);
+    createBox(octree, Eigen::Vector3f( sp,  sp, 0.0f), size, cPurple, 0.0f, 0.01f, 0.0f, 1.0f, 1.5f);
+
+    // White Light Box (Above)
+    // Placed near the ceiling (Z=7.4), made large (8x8) to cast soft shadows evenly over the whole 3x3 grid
+    createBox(octree, Eigen::Vector3f(0.0f, 0.0f, 7.4f), Eigen::Vector3f(8.0f, 8.0f, 0.2f), Eigen::Vector3f(1.0f, 1.0f, 1.0f), 15.0f);
+
+    std::cout << "Optimizing and Generating LODs..." << std::endl;
+    octree.generateLODs();
+    octree.printStats();
+
+    // 3. Setup rendering loop
+    int width = 512;
+    int height = 512;
+    int samples = 400;
+    int bounces = 5;
+
+    struct View {
+        std::string name;
+        Eigen::Vector3f origin;
+        Eigen::Vector3f up;
+    };
+
+    // The walls are set perfectly at +/- 7.0 inner edges.
+    // Placing camera at +/- 6.8 will put it "just barely inside".
+    // Floor is at Z = -0.5, Wall top is at Z = 7.5
+    std::vector<View> views = {
+        {"+X", Eigen::Vector3f( 6.8f,  0.0f,  1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
+        {"-X", Eigen::Vector3f(-6.8f,  0.0f,  1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
+        {"+Y", Eigen::Vector3f( 0.0f,  6.8f,  1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
+        {"-Y", Eigen::Vector3f( 0.0f, -6.8f,  1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
+        {"+Z", Eigen::Vector3f( 0.0f,  0.0f,  7.3f), Eigen::Vector3f(0.0f, 1.0f, 0.0f)} // Looking down from just beneath wall top
+    };
+
+    Eigen::Vector3f target(0.0f, 0.0f, 0.5f);
+
+    for (const auto& view : views) {
+        std::cout << "\nRendering view from " << view.name << " direction (Fast Pass)..." << std::endl;
+        
+        Camera cam;
+        cam.origin = view.origin;
+        cam.direction = (target - view.origin).normalized();
+        cam.up = view.up;
+        
+        frame out = octree.fastRenderFrame(cam, height, width, frame::colormap::RGB);
+        
+        std::string filename = "output/fast/render_" + view.name + ".bmp";
+        BMPWriter::saveBMP(filename, out);
+    }
+    
+    for (const auto& view : views) {
+        std::cout << "\nRendering view from " << view.name << " direction (Medium 60s Pass)..." << std::endl;
+        
+        Camera cam;
+        cam.origin = view.origin;
+        cam.direction = (target - view.origin).normalized();
+        cam.up = view.up;
+        
+        frame out = octree.renderFrameTimed(cam, height, width, frame::colormap::RGB, 60, bounces, false, true);
+        
+        std::string filename = "output/medium/render_" + view.name + ".bmp";
+        BMPWriter::saveBMP(filename, out);
+    }
+    
+    for (const auto& view : views) {
+        std::cout << "\nRendering view from " << view.name << " direction (Slow 400 Samples Pass)..." << std::endl;
+        
+        Camera cam;
+        cam.origin = view.origin;
+        cam.direction = (target - view.origin).normalized();
+        cam.up = view.up;
+        
+        frame out = octree.renderFrame(cam, height, width, frame::colormap::RGB, samples, bounces, false, true);
+        
+        std::string filename = "output/slow/render_" + view.name + ".bmp";
+        BMPWriter::saveBMP(filename, out);
+    }
+
+    std::cout << "\nAll renders complete!" << std::endl;
+    return 0;
+}

tests/planet.cpp

@@ -0,0 +1,582 @@
+#ifndef PLANET_CPP
+#define PLANET_CPP
+
+#include "../util/sim/planet.hpp"
+#include "../util/grid/camera.hpp"
+#include "../util/noise/pnoise2.hpp"
+#include "../util/noise/pnoise.cpp"
+
+class planetSimUI {
+private:
+    planetsim sim;
+    Camera cam;
+    bool isRunning = false;
+    
+    // Texture Management
+    GLuint textu = 0;
+    std::mutex PreviewMutex;
+    bool updatePreview = false;
+    bool textureInitialized = false;
+    frame currentPreviewFrame;
+    int outWidth = 1024;
+    int outHeight = 1024;
+    float fps = 60;
+    int rayCount = 3;
+    int reflectCount = 4;
+    bool slowRender = false;
+    float lodDist = 1024.0f;
+    float lodDropoff = 0.001f;
+    float maxViewDistance = 4096;
+    bool globalIllumination = false;
+    bool useLod = true;
+    std::map<int, bool> keyStates;
+    float deltaTime = 0.16f;
+    bool orbitEquator = false;
+    float rotationRadius = 2500;
+    float angle = 0.0f;
+    const float ω = (std::pow(M_PI, 2) / 30) / 10;
+    bool tectonicGenned = false;
+    bool doFixPlates = true;
+    bool platesUseCellular = false;
+    std::chrono::steady_clock::time_point lastStatsUpdate;
+    std::string cachedStats;
+    bool statsNeedUpdate = true;
+    float framerate = 60.0;
+
+    enum class DebugColorMode {
+        BASE,
+        PLATES,
+        NOISE,
+        RESERVED
+    };
+    DebugColorMode currentColorMode = DebugColorMode::BASE;
+
+    enum class DebugMapMode {
+        NONE,
+        BASE,
+        NOISE,
+        TECTONIC,
+        TECTONICCOLOR,
+        CURRENT
+    };
+    DebugMapMode currentMapMode = DebugMapMode::NONE;
+    GLuint mapTexture = 0;
+    frame mapFrame;
+
+public:
+    planetSimUI() {
+        cam.origin = v3(4000, 4000, 4000);
+        cam.direction = (v3(0,0,0) - cam.origin).normalized();
+        cam.up = v3(0,1,0);
+        cam.fov = 60;
+        cam.rotationSpeed = M_1_PI;
+    }
+
+    ~planetSimUI() {
+        if (textu != 0) {
+            glDeleteTextures(1, &textu);
+        }
+        if (mapTexture != 0) {
+            glDeleteTextures(1, &mapTexture);
+        }
+        sim.grid.clear();
+    }
+
+    void renderUI(GLFWwindow* window) {
+        handleCameraControls(window);
+        ImGui::Begin("Planet Simulation");
+        if (ImGui::BeginTable("MainLayout", 2, ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter)) {
+            ImGui::TableSetupColumn("Controls", ImGuiTableColumnFlags_WidthStretch, 0.3f);
+            ImGui::TableSetupColumn("Preview", ImGuiTableColumnFlags_WidthStretch, 0.7f);
+            ImGui::TableNextColumn();
+            renderControlsPanel();
+            ImGui::TableNextColumn();
+            renderPreviewPanel();
+            ImGui::EndTable();
+        }
+        ImGui::End();
+    }
+
+    void handleCameraControls(GLFWwindow* window) {
+        if (orbitEquator) {
+            angle += cam.rotationSpeed * deltaTime * ω;
+            
+            cam.origin[0] = sim.config.center[0] + rotationRadius * cosf(angle);
+            cam.origin[1] = sim.config.center[1];
+            cam.origin[2] = sim.config.center[2] + rotationRadius * sinf(angle);
+            
+            v3 target(sim.config.center);
+            cam.direction = (target - cam.origin).normalized();
+        }
+        glfwPollEvents();
+        for (int i = GLFW_KEY_SPACE; i <= GLFW_KEY_LAST; i++) {
+            keyStates[i] = (glfwGetKey(window, i) == GLFW_PRESS);
+        }
+        if (keyStates[GLFW_KEY_W]) cam.moveForward(deltaTime);
+        if (keyStates[GLFW_KEY_S]) cam.moveBackward(deltaTime);
+        if (keyStates[GLFW_KEY_A]) cam.moveLeft(deltaTime);
+        if (keyStates[GLFW_KEY_D]) cam.moveRight(deltaTime);
+        if (keyStates[GLFW_KEY_Z]) cam.moveUp(deltaTime);
+        if (keyStates[GLFW_KEY_X]) cam.moveDown(deltaTime);
+        if (keyStates[GLFW_KEY_Q]) cam.rotateYaw(deltaTime);
+        if (keyStates[GLFW_KEY_R]) cam.rotateYaw(-deltaTime);
+    }
+
+    void renderControlsPanel() {
+        ImGui::BeginChild("ControlsScroll", ImVec2(0, 0), true);
+        
+        if (ImGui::CollapsingHeader("Base Configuration", ImGuiTreeNodeFlags_DefaultOpen)) {
+            ImGui::DragFloat("Radius", &sim.config.radius, 1.0f, 10.0f, 10000.0f);
+            ImGui::InputInt("Surface Points", &sim.config.surfacePoints);
+            ImGui::DragFloat("Voxel Size", &sim.config.voxelSize, 0.1f, 0.1f, 100.0f);
+            ImGui::ColorEdit3("Base Color", sim.config.color.data());
+            
+            ImGui::Separator();
+            
+            if (ImGui::Button("1. Generate Fib Sphere", ImVec2(-1, 40))) {
+                sim.generateFibSphere();
+                applyDebugColorMode();
+            }
+            ImGui::Text("Current Step: %d", sim.config.currentStep);
+            ImGui::Text("Nodes: %zu", sim.config.surfaceNodes.size());
+            ImGui::InputFloat("Noise strength", &sim.config.noiseStrength, 0.01, 1, "%.4f");
+        }
+
+        if (ImGui::CollapsingHeader("Physics Parameters")) {
+            ImGui::DragFloat("Gravity (G)", &sim.config.G_ATTRACTION, 0.1f);
+            ImGui::DragFloat("Time Step", &sim.config.TIMESTEP, 0.001f, 0.0001f, 0.1f);
+            ImGui::DragFloat("Viscosity", &sim.config.dampingFactor, 0.001f, 0.0f, 1.0f);
+            ImGui::DragFloat("Pressure Stiffness", &sim.config.pressureStiffness, 10.0f);
+        }
+
+        if (ImGui::CollapsingHeader("Tectonic Simulation")) {
+            ImGui::DragInt("Num Plates", &sim.config.numPlates, 1, 1, 100);
+            ImGui::DragInt("Smoothing Passes", &sim.config.smoothingPasses, 1, 0, 10);
+            ImGui::DragFloat("Mountain Height", &sim.config.mountHeight, 1.0f, 0.0f, 1000.0f);
+            ImGui::DragFloat("Valley Depth", &sim.config.valleyDepth, 1.0f, -1000.0f, 0.0f);
+            ImGui::DragFloat("Transform Roughness", &sim.config.transformRough, 1.0f, 0.0f, 500.0f);
+            ImGui::DragInt("Stress Passes", &sim.config.stressPasses, 1, 0, 20);
+            ImGui::DragFloat("Max Elevation Ratio", &sim.config.maxElevationRatio, 1.0f, 0.0f, 1.0f);
+            ImGui::Checkbox("Fix Boundaries", &doFixPlates);
+            ImGui::Checkbox("use Cellular", &platesUseCellular);
+
+            if (ImGui::Button("2. Simulate Tectonics", ImVec2(-1, 40))) {
+                simulateTectonics();
+            }
+        }
+
+        if (ImGui::CollapsingHeader("Celestial Bodies")) {
+            ///TODO: add controls for moon, star.
+            if (ImGui::Button("Add Star", ImVec2(-1, 40))) {
+                sim.addStar();
+            }
+        }
+
+        if (ImGui::CollapsingHeader("Fillings")) {
+            if (ImGui::Button("Interpolate surface", ImVec2(-1, 40))) {
+                interpolateSurface();
+            }
+            if (ImGui::Button("Fill Planet", ImVec2(-1, 40))) {
+                fillPlanet();
+            }
+        }
+
+        if (ImGui::CollapsingHeader("Debug Views")) {
+            ImGui::Text("3D Planet Color Mode:");
+            bool colorChanged = false;
+            if (ImGui::RadioButton("Base Color", currentColorMode == DebugColorMode::BASE)) { 
+                currentColorMode = DebugColorMode::BASE;
+                colorChanged = true;
+            }
+            ImGui::SameLine();
+            if (ImGui::RadioButton("Plates", currentColorMode == DebugColorMode::PLATES)) { 
+                currentColorMode = DebugColorMode::PLATES;
+                colorChanged = true;
+            }
+            
+            if (ImGui::RadioButton("Noise", currentColorMode == DebugColorMode::NOISE)) { 
+                currentColorMode = DebugColorMode::NOISE;
+                colorChanged = true;
+            }
+            ImGui::SameLine();
+            if (ImGui::RadioButton("Reserved", currentColorMode == DebugColorMode::RESERVED)) { 
+                currentColorMode = DebugColorMode::RESERVED; 
+                colorChanged = true; 
+            }
+
+            if (colorChanged) {
+                applyDebugColorMode();
+            }
+
+            ImGui::Separator();
+            ImGui::Text("2D Height Map Mode:");
+            bool mapChanged = false;
+            
+            if (ImGui::RadioButton("None", currentMapMode == DebugMapMode::NONE)) { 
+                currentMapMode = DebugMapMode::NONE; 
+                mapChanged = true; 
+            }
+            ImGui::SameLine();
+            if (ImGui::RadioButton("Base Pos", currentMapMode == DebugMapMode::BASE)) { 
+                currentMapMode = DebugMapMode::BASE; 
+                mapChanged = true; 
+            }
+            ImGui::SameLine();
+            if (ImGui::RadioButton("Noise Pos", currentMapMode == DebugMapMode::NOISE)) { 
+                currentMapMode = DebugMapMode::NOISE; 
+                mapChanged = true; 
+            }
+
+            if (!tectonicGenned) ImGui::BeginDisabled();
+            
+            ImGui::SameLine();
+            if (ImGui::RadioButton("Tectonic Pos", currentMapMode == DebugMapMode::TECTONIC)) { 
+                currentMapMode = DebugMapMode::TECTONIC; 
+                mapChanged = true; 
+            }
+
+            if (ImGui::RadioButton("Tectonic Color", currentMapMode == DebugMapMode::TECTONICCOLOR)) { 
+                currentMapMode = DebugMapMode::TECTONICCOLOR;
+                mapChanged = true; 
+            }
+            ImGui::SameLine();
+            if (!tectonicGenned) ImGui::EndDisabled();
+            
+            if (ImGui::RadioButton("Current Pos", currentMapMode == DebugMapMode::CURRENT)) { 
+                currentMapMode = DebugMapMode::CURRENT; 
+                mapChanged = true; 
+            }
+
+            if (ImGui::Button("Refresh Map", ImVec2(-1, 24))) {
+                mapChanged = true;
+                generateDebugMap(currentMapMode);
+            }
+
+            if (mapChanged && currentMapMode != DebugMapMode::NONE) {
+                generateDebugMap(currentMapMode);
+            }
+
+            if (currentMapMode != DebugMapMode::NONE && mapTexture != 0) {
+                float availWidth = ImGui::GetContentRegionAvail().x;
+                ImGui::Image((void*)(intptr_t)mapTexture, ImVec2(availWidth, availWidth * 0.5f));
+            }
+        }
+
+        if (ImGui::CollapsingHeader("Camera Controls", ImGuiTreeNodeFlags_DefaultOpen)) {
+            ImGui::DragFloat3("Origin", cam.origin.data());
+            ImGui::DragFloat3("Direction", cam.direction.data(), 0.0001f, -1.0f, 1.0f);
+            ImGui::DragFloat("Movement Speed", &cam.movementSpeed, 0.1f, 1.0f, 500.0f);
+            ImGui::DragFloat("Rotation Speed", &cam.rotationSpeed, M_1_PI, M_1_PI, M_PI);
+            ImGui::InputFloat("Rotation Distance", &rotationRadius, 10, 100);
+            ImGui::InputFloat("Max Framerate", &framerate, 1, 10);
+
+            ImGui::Checkbox("Use Slower Render", &slowRender);
+
+            if (ImGui::Button("Focus on Planet")) {
+                v3 target(sim.config.center);
+                v3 newDir = (target - cam.origin).normalized();
+                cam.direction = newDir;
+            }
+
+            if (ImGui::Button(orbitEquator ? "Stop Equator" : "Orbit Equator")) orbitEquator = !orbitEquator;
+        }
+
+        updateStatsCache();
+        ImGui::TextUnformatted(cachedStats.c_str());
+
+        ImGui::EndChild();
+    }
+
+    void renderPreviewPanel() {
+        ImGui::BeginChild("PreviewChild", ImVec2(0, 0), true, ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoScrollWithMouse);
+        
+        livePreview();
+        if (textureInitialized) {
+            float aspect = (float)currentPreviewFrame.getWidth() / (float)currentPreviewFrame.getHeight();
+            float availWidth = ImGui::GetContentRegionAvail().x;
+            ImGui::Image((void*)(intptr_t)textu, ImVec2(availWidth, availWidth / aspect));
+        }
+
+        ImGui::EndChild();
+    }
+
+    void applyDebugColorMode() {
+        if (sim.config.surfaceNodes.empty()) return;
+
+        float minNoise = std::numeric_limits<float>::max();
+        float maxNoise = std::numeric_limits<float>::lowest();
+        int minSub = std::numeric_limits<int>::max();
+        int maxSub = std::numeric_limits<int>::lowest();
+
+        for (const auto& p : sim.config.surfaceNodes) {
+            if (p.noiseDisplacement < minNoise) minNoise = p.noiseDisplacement;
+            if (p.noiseDisplacement > maxNoise) maxNoise = p.noiseDisplacement;
+        }
+        int snf = 0;
+        int inf = 0;
+
+        for (auto& p : sim.config.surfaceNodes) {
+            v3 color = p.originColor.cast<float>();
+            
+            switch (currentColorMode) {
+                case DebugColorMode::PLATES:
+                    if (p.plateID != -1 && p.plateID < sim.plates.size()) {
+                        color = sim.plates[p.plateID].debugColor;
+                    } else {
+                        color = v3(0.5f, 0.5f, 0.5f);
+                    }
+                    break;
+                case DebugColorMode::NOISE: {
+                    float t = 0.5f;
+                    if (maxNoise > minNoise) t = (p.noiseDisplacement - minNoise) / (maxNoise - minNoise);
+                    color = v3(t, t, t);
+                    break;
+                }
+                case DebugColorMode::BASE:
+                default:
+                    color = p.originColor.cast<float>();
+                    break;
+            }
+
+            if (!sim.grid.setColor(p.currentPos, color)) {
+                snf++;
+            }
+            // sim.grid.update(p.currentPos, p.currentPos, p, true, color, sim.config.voxelSize, true, -2, false, 0.0f, 0.0f, 0.0f);
+        }
+        for (auto& p : sim.config.interpolatedNodes) {
+            v3 color = p.originColor.cast<float>();
+            
+            switch (currentColorMode) {
+                case DebugColorMode::PLATES:
+                    if (p.plateID != -1 && p.plateID < sim.plates.size()) {
+                        color = sim.plates[p.plateID].debugColor;
+                    } else {
+                        color = v3(0.5f, 0.5f, 0.5f);
+                    }
+                    break;
+                case DebugColorMode::NOISE: {
+                    float t = 0.5f;
+                    if (maxNoise > minNoise) t = (p.noiseDisplacement - minNoise) / (maxNoise - minNoise);
+                    color = v3(t, t, t);
+                    break;
+                }
+                case DebugColorMode::BASE:
+                default:
+                    color = p.originColor.cast<float>();
+                    break;
+            }
+
+            if (!sim.grid.setColor(p.currentPos, color)) {
+                inf++;
+            }
+            // sim.grid.update(p.currentPos, p.currentPos, p, true, color, sim.config.voxelSize, true, -2, false, 0.0f, 0.0f, 0.0f);
+        }
+        if (snf > 0 || inf > 0) {
+            std::cout << snf << " original nodes failed to set" << std::endl;
+            std::cout << inf << " interpolated nodes failed to set" << std::endl;
+        }
+    }
+
+    void generateDebugMap(DebugMapMode mode) {
+        if (mode == DebugMapMode::NONE || sim.config.surfaceNodes.empty()) return;
+
+        int w = 512;
+        int h = 348;
+        std::vector<float> depths(w * h, -1.0f);
+        float minD = std::numeric_limits<float>::max();
+        float maxD = std::numeric_limits<float>::lowest();
+
+        for (const auto& p : sim.config.surfaceNodes) {
+            v3 pos;
+            switch(mode) {
+                case DebugMapMode::BASE: 
+                    pos = p.altPos->originalPos.cast<float>();
+                    break;
+                case DebugMapMode::NOISE: 
+                    pos = p.altPos->noisePos.cast<float>();
+                    break;
+                case DebugMapMode::TECTONIC: 
+                    pos = p.altPos->tectonicPos.cast<float>();
+                    break;
+                case DebugMapMode::CURRENT:
+                default: 
+                    pos = p.currentPos;
+                    break;
+            }
+            float d = pos.norm();
+            if (d < minD) minD = d;
+            if (d > maxD) maxD = d;
+        }
+
+        for (const auto& p : sim.config.surfaceNodes) {
+            v3 pos;
+            switch(mode) {
+                case DebugMapMode::BASE: 
+                    pos = p.altPos->originalPos.cast<float>();
+                    break;
+                case DebugMapMode::NOISE: 
+                    pos = p.altPos->noisePos.cast<float>();
+                    break;
+                case DebugMapMode::TECTONIC: 
+                    pos = p.altPos->tectonicPos.cast<float>();
+                    break;
+                case DebugMapMode::TECTONICCOLOR: 
+                    pos = sim.plates[p.plateID].debugColor;
+                    break;
+                case DebugMapMode::CURRENT:
+                default:
+                    pos = p.currentPos;
+                    break;
+            }
+
+            float d = pos.norm();
+            v3 n = p.altPos->originalPos.cast<float>().normalized();
+            
+            float u = 0.5f + std::atan2(n.z(), n.x()) / (2.0f * static_cast<float>(M_PI));
+            float v = 0.5f - std::asin(n.y()) / static_cast<float>(M_PI);
+
+            int px = std::clamp(static_cast<int>(u * w), 0, w - 1);
+            int py = std::clamp(static_cast<int>(v * h), 0, h - 1);
+
+            float normalizedD = (maxD > minD) ? (d - minD) / (maxD - minD) : 0.5f;
+
+            for (int dy = -1; dy <= 1; dy++) {
+                for (int dx = -1; dx <= 1; dx++) {
+                    int nx = px + dx;
+                    int ny = py + dy;
+                    
+                    if (nx < 0) nx += w;
+                    if (nx >= w) nx -= w;
+                    
+                    if (ny >= 0 && ny < h) {
+                        int idx = ny * w + nx;
+                        if (depths[idx] < 0.0f || normalizedD > depths[idx]) {
+                            depths[idx] = normalizedD;
+                        }
+                    }
+                }
+            }
+        }
+
+        for (int i = 0; i < w * h; i++) {
+            if (depths[i] < 0.0f) depths[i] = 0.0f;
+        }
+
+        std::vector<uint8_t> pixels(w * h * 3);
+        for (int i = 0; i < w * h; i++) {
+            uint8_t val = static_cast<uint8_t>(depths[i] * 255.0f);
+            pixels[i * 3 + 0] = val;
+            pixels[i * 3 + 1] = val;
+            pixels[i * 3 + 2] = val;
+        }
+
+        mapFrame = frame(w, h, frame::colormap::RGB);
+        mapFrame.setData(pixels);
+
+        if (mapTexture == 0) {
+            glGenTextures(1, &mapTexture);
+        }
+        
+        glBindTexture(GL_TEXTURE_2D, mapTexture);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, mapFrame.getData().data());
+    }
+
+    void applyNoise(const NoisePreviewState& noiseState) {
+        TIME_FUNCTION;
+        auto triplanarNoise = [&](const Eigen::Vector3f& pos) -> float {
+            PNoise2 gen(noiseState.masterSeed);
+            
+            Eigen::Vector3f n = pos.normalized();
+            Eigen::Vector3f blend = n.cwiseAbs();
+            float sum = blend.x() + blend.y() + blend.z();
+            blend /= sum;
+
+            Eigen::Vector3f offsetPos = pos + Eigen::Vector3f(noiseState.offset[0], noiseState.offset[1], 0.0f);
+            float vXY = sim.evaluate2DStack(Eigen::Vector2f(offsetPos.x(), offsetPos.y()), noiseState, gen);
+            float vXZ = sim.evaluate2DStack(Eigen::Vector2f(offsetPos.x(), offsetPos.z()), noiseState, gen);
+            float vYZ = sim.evaluate2DStack(Eigen::Vector2f(offsetPos.y(), offsetPos.z()), noiseState, gen);
+
+            // Blend results
+            return vYZ * blend.x() + vXZ * blend.y() + vXY * blend.z();
+        };
+        sim._applyNoise(triplanarNoise);
+        applyDebugColorMode();
+    }
+
+    void livePreview() {
+        std::lock_guard<std::mutex> lock(PreviewMutex);
+        updatePreview = true;
+        
+        sim.grid.setLODMinDistance(lodDist);
+        sim.grid.setLODFalloff(lodDropoff);
+        sim.grid.setMaxDistance(maxViewDistance);
+        float invFrameRate = 1 / framerate;
+        
+        if (slowRender) {
+            currentPreviewFrame = sim.grid.renderFrameTimed(cam, outHeight, outWidth, frame::colormap::RGB, invFrameRate, reflectCount, globalIllumination, useLod);
+        } else {
+            currentPreviewFrame = sim.grid.fastRenderFrame(cam, outHeight, outWidth, frame::colormap::RGB);
+        }
+        
+        if (textu == 0) {
+            glGenTextures(1, &textu);
+        }
+        glBindTexture(GL_TEXTURE_2D, textu);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+        
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
+                     0, GL_RGB, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
+        
+        updatePreview = false;
+        textureInitialized = true;
+    }
+
+    void resetView() {
+        cam.origin = Vector3f(sim.config.gridSizeCube, sim.config.gridSizeCube, sim.config.gridSizeCube);
+        Vector3f center(sim.config.gridSizeCube / 2.0f, sim.config.gridSizeCube / 2.0f, sim.config.gridSizeCube / 2.0f);
+        cam.lookAt(center);
+    }
+
+    void simulateTectonics() {
+        
+        currentColorMode = DebugColorMode::PLATES;
+        
+        sim.assignSeeds();
+        sim.buildAdjacencyList();
+        if (platesUseCellular) {
+            sim.growPlatesCellular();
+        } else sim.growPlatesRandom();
+        if (doFixPlates) sim.fixBoundaries();
+        sim.extraplateste();
+        sim.boundaryStress();
+        sim.finalizeApplyResults();
+
+        applyDebugColorMode();
+        tectonicGenned = true;
+        if(currentMapMode != DebugMapMode::NONE) generateDebugMap(currentMapMode);
+    }
+
+    void interpolateSurface() {
+        sim.interpolateSurface();
+        applyDebugColorMode();
+    }
+
+    void fillPlanet() {
+        sim.fillPlanet();
+    }
+
+    void updateStatsCache() {
+        std::stringstream gridstats;
+        sim.grid.printStats(gridstats);
+        cachedStats = gridstats.str();
+        lastStatsUpdate = std::chrono::steady_clock::now();
+        statsNeedUpdate = false;
+    }
+};
+
+#endif

tests/plant.cpp

@@ -0,0 +1,264 @@
+#ifndef PLANT_CPP
+#define PLANT_CPP
+
+#include "../util/sim/plant.hpp"
+#include "../util/grid/camera.hpp"
+
+// Assuming ImGui headers are available via ptest.cpp or similar include paths
+#include "imgui.h"
+#include "imgui_impl_glfw.h"
+#include "imgui_impl_opengl3.h"
+
+class PlantSimUI {
+private:
+    PlantSim sim;
+    Camera cam;
+    
+    // Rendering / Texture vars
+    GLuint textu = 0;
+    std::mutex PreviewMutex;
+    bool textureInitialized = false;
+    frame currentPreviewFrame;
+    
+    // Render Settings
+    int outWidth = 512;
+    int outHeight = 512;
+    bool slowRender = false;
+    bool globalIllumination = true; // Default to true to see sun emission
+    int reflectCount = 2;
+    float maxDist = 200.0f;
+    float framerate = 10.0f;
+    
+    // Input state
+    std::map<int, bool> keyStates;
+    float deltaTime = 0.016f; // approx 30fps
+
+    const char* getSeasonName(float season, float latitude) {
+        bool north = latitude >= 0;
+        if (season < 0.25f) return north ? "Spring" : "Autumn";
+        if (season < 0.50f) return north ? "Summer" : "Winter";
+        if (season < 0.75f) return north ? "Autumn" : "Spring";
+        return north ? "Winter" : "Summer";
+    }
+
+    const char* getWeatherName(PlantSim::WeatherState state) {
+        switch(state) {
+            case PlantSim::WeatherState::RAIN: return "Raining";
+            case PlantSim::WeatherState::SNOW: return "Snowing";
+            default: return "Clear";
+        }
+    }
+public:
+    PlantSimUI() {
+        // Position camera to look at the dirt
+        cam.origin = v3(0, 5, 30);
+        cam.lookAt(v3(0, 2, 0));
+        cam.fov = 45;
+        
+        // Init the simulation
+        sim.initWorld();
+        v3 bg = v3(0.511f, 0.625f, 0.868f);
+        sim.grid.setBackgroundColor(bg);
+        sim.grid.setSkylight(bg);
+    }
+
+    ~PlantSimUI() {
+        if (textu != 0) glDeleteTextures(1, &textu);
+    }
+
+    void renderUI(GLFWwindow* window) {
+        handleCameraControls(window);
+
+        ImGui::Begin("Plant Growth Lab");
+        
+        if (ImGui::BeginTable("PlantLayout", 2, ImGuiTableFlags_Resizable)) {
+            ImGui::TableSetupColumn("Controls", ImGuiTableColumnFlags_WidthStretch, 0.3f);
+            ImGui::TableSetupColumn("Viewport", ImGuiTableColumnFlags_WidthStretch, 0.7f);
+            ImGui::TableNextColumn();
+            
+            renderControls();
+            
+            ImGui::TableNextColumn();
+            
+            renderPreview();
+            
+            ImGui::EndTable();
+        }
+        sim.update(deltaTime);
+        
+        ImGui::End();
+    }
+
+private:
+    void handleCameraControls(GLFWwindow* window) {
+        glfwPollEvents();
+        for (int i = GLFW_KEY_SPACE; i <= GLFW_KEY_LAST; i++) {
+            keyStates[i] = (glfwGetKey(window, i) == GLFW_PRESS);
+        }
+        
+        float speed = 10.0f * deltaTime;
+        if (keyStates[GLFW_KEY_W]) cam.moveForward(deltaTime * 10.0f);
+        if (keyStates[GLFW_KEY_S]) cam.moveBackward(deltaTime * 10.0f);
+        if (keyStates[GLFW_KEY_A]) cam.moveLeft(deltaTime * 10.0f);
+        if (keyStates[GLFW_KEY_D]) cam.moveRight(deltaTime * 10.0f);
+        if (keyStates[GLFW_KEY_Q]) cam.rotateYaw(deltaTime);
+        if (keyStates[GLFW_KEY_E]) cam.rotateYaw(-deltaTime);
+    }
+
+    void renderControls() {
+        if (ImGui::CollapsingHeader("World State", ImGuiTreeNodeFlags_DefaultOpen)) {
+            ImGui::Text("Day: %d / %d", sim.config.currentDay + 1, sim.config.daysPerYear);
+            ImGui::Text("Season: %s", getSeasonName(sim.config.season, sim.config.latitude));
+            ImGui::Text("Global Temperature: %.1f °C", sim.currentTemperature);
+            
+            ImVec4 weatherColor = ImVec4(1, 1, 1, 1);
+            if (sim.currentWeather == PlantSim::WeatherState::RAIN) weatherColor = ImVec4(0.3f, 0.5f, 1.0f, 1.0f);
+            else if (sim.currentWeather == PlantSim::WeatherState::SNOW) weatherColor = ImVec4(0.8f, 0.9f, 1.0f, 1.0f);
+            
+            ImGui::TextColored(weatherColor, "Current Weather: %s", getWeatherName(sim.currentWeather));
+            ImGui::TextColored(weatherColor, "(Time Remaining: %.1fs)", sim.weatherTimer);
+            
+            ImGui::Separator();
+            ImGui::Text("Atmospheric Moisture: %.1f", sim.atmosphericMoisture);
+            float localCo2 = 0.0f;
+            float localAirTemp = sim.currentTemperature;
+            auto airNodes = sim.grid.findInRadius(v3(0, sim.config.voxelSize / 2.0f, 0), sim.config.voxelSize, 5);
+            if (!airNodes.empty()) {
+                auto ap = std::static_pointer_cast<AirParticle>(airNodes[0]->data);
+                localCo2 = ap->co2;
+                localAirTemp = ap->temperature;
+            }
+            ImGui::Text("Local Air Temp: %.1f °C", localAirTemp);
+            ImGui::Text("Ambient CO2: %.1f ppm", localCo2);
+            
+            if (sim.extendedHeatTimer > 0.0f) {
+                ImGui::TextColored(ImVec4(1.0f, 0.4f, 0.0f, 1.0f), "Heat Wave Timer: %.1f days", sim.extendedHeatTimer / std::max(1.0f, sim.config.dayDuration));
+            } else {
+                ImGui::Text("Heat Wave Timer: 0.0 days");
+            }
+        }
+        
+        if (ImGui::CollapsingHeader("Plant Health & Structure", ImGuiTreeNodeFlags_DefaultOpen)) {
+            ImGui::Text("Active Plant Cells:");
+            ImGui::BulletText("Leaves: %d", sim.leafCount);
+            ImGui::BulletText("Roots: %d", sim.rootCount);
+            ImGui::Text("Total Organism Resources:");
+            ImGui::ProgressBar(std::min(sim.totalPlantEnergy / (std::max(1, sim.leafCount + sim.rootCount) * 20.0f), 1.0f), ImVec2(-1, 0), 
+                ("Energy: " + std::to_string((int)sim.totalPlantEnergy)).c_str());
+            ImGui::ProgressBar(std::min(sim.totalPlantWater / (std::max(1, sim.leafCount + sim.rootCount) * 20.0f), 1.0f), ImVec2(-1, 0), 
+                ("Water: " + std::to_string((int)sim.totalPlantWater)).c_str());
+        }
+            ImGui::Separator();
+            
+        if (ImGui::CollapsingHeader("Soil Environment")) {
+            float currentHydration = 0.0f;
+            float currentTemp = 0.0f;
+            float n = 0;
+            float p = 0;
+            float k = 0;
+            float c = 0;
+            float mg = 0;
+
+            auto dirtNodes = sim.grid.findInRadius(v3(0, -sim.config.voxelSize / 2.0f, 0), sim.config.voxelSize, 0);
+            if (!dirtNodes.empty()) {
+                auto dp = std::static_pointer_cast<DirtParticle>(dirtNodes[0]->data);
+                currentHydration = dp->hydration;
+                currentTemp = dp->temperature;
+                n = dp->nitrogen;
+                p = dp->phosphorus;
+                k = dp->potassium;
+                c = dp->carbon;
+                mg = dp->magnesium;
+            }
+            ImGui::Text("Soil Temp: %.1f °C", currentTemp);
+            ImGui::ProgressBar(std::min(currentHydration / 500.0f, 1.0f), ImVec2(-1, 0), 
+                ("Water: " + std::to_string((int)currentHydration)).c_str());
+            
+            ImGui::Text("Nitrogen (N): %.1f", n);
+            ImGui::Text("Phosphorus (P): %.1f", p);
+            ImGui::Text("Potassium (K): %.1f", k);
+            ImGui::Text("Carbon (C): %.1f", c);
+            ImGui::Text("Magnesium (Mg): %.1f", mg);
+        }
+
+        if (ImGui::CollapsingHeader("Sun & Seasons", ImGuiTreeNodeFlags_DefaultOpen)) {
+            bool rebuildSun = false;
+            
+            ImGui::Text("Time & Season");
+            ImGui::SliderFloat("Time of Day", &sim.config.timeOfDay, 0.0f, 1.0f);
+            int prevDay = sim.config.currentDay;
+            if (ImGui::SliderInt("Current Day", &sim.config.currentDay, 0, sim.config.daysPerYear - 1)) {
+                sim.config.season = (static_cast<float>(sim.config.currentDay) + sim.config.timeOfDay) / sim.config.daysPerYear;
+            }
+            ImGui::SliderFloat("Day Duration (s)", &sim.config.dayDuration, 1.0f, 600.0f);
+            if (ImGui::SliderInt("Days per Year", &sim.config.daysPerYear, 4, 365)) {
+                if (sim.config.currentDay >= sim.config.daysPerYear) sim.config.currentDay = 0;
+            }
+            
+            ImGui::Separator();
+            ImGui::Text("Geography");
+            ImGui::SliderFloat("Latitude", &sim.config.latitude, -90.0f, 90.0f);
+            ImGui::SliderFloat("Axial Tilt", &sim.config.axialTilt, 0.0f, 90.0f);
+            
+            ImGui::Separator();
+            ImGui::Text("Sun Appearance");
+            rebuildSun |= ImGui::SliderFloat("Distance", &sim.config.sunDistance, 10.0f, 100.0f);
+            rebuildSun |= ImGui::ColorEdit3("Color", sim.config.sunColor.data());
+            rebuildSun |= ImGui::DragFloat("Intensity", &sim.config.sunIntensity, 0.1f, 0.0f, 100.0f);
+
+            ImGui::Text("Weather Constraints");
+            ImGui::SliderFloat("Precipitation Rate", &sim.config.precipRate, 10.0f, 500.0f);
+        }
+
+        if (ImGui::CollapsingHeader("Simulation")) {
+            if (ImGui::Button("Reset World", ImVec2(-1, 0))) {
+                sim.initWorld();
+            }
+        }
+
+        if (ImGui::CollapsingHeader("Render Settings")) {
+            ImGui::Checkbox("High Quality (Slow)", &slowRender);
+            ImGui::Checkbox("Global Illumination", &globalIllumination);
+            ImGui::DragInt("Bounces", &reflectCount, 1, 0, 8);
+        }
+    }
+
+    void renderPreview() {
+        livePreview();
+
+        if (textureInitialized) {
+            float availW = ImGui::GetContentRegionAvail().x;
+            float aspect = (float)outWidth / (float)outHeight;
+            ImGui::Image((void*)(intptr_t)textu, ImVec2(availW, availW / aspect));
+        }
+    }
+
+    void livePreview() {
+        std::lock_guard<std::mutex> lock(PreviewMutex);
+        
+        // Update Grid settings based on UI
+        sim.grid.setMaxDistance(maxDist);
+        
+        // Render
+        if (slowRender) {
+            currentPreviewFrame = sim.grid.renderFrame(cam, outHeight, outWidth, frame::colormap::RGB, 10, reflectCount, globalIllumination, true);
+        } else {
+            currentPreviewFrame = sim.grid.fastRenderFrame(cam, outHeight, outWidth, frame::colormap::RGB);
+        }
+
+        // Upload to GPU
+        if (textu == 0) glGenTextures(1, &textu);
+        
+        glBindTexture(GL_TEXTURE_2D, textu);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+        
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
+                     0, GL_RGB, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
+        
+        textureInitialized = true;
+    }
+};
+
+#endif

tests/ptest.cpp

@@ -0,0 +1,136 @@
+#include <iostream>
+#include <vector>
+#include <string>
+
+#include <GLFW/glfw3.h>
+
+#include "imgui.h"
+#include "imgui_impl_glfw.h"
+#include "imgui_impl_opengl3.h"
+
+#include "../util/noise/pnoise.cpp"
+#include "planet.cpp"
+#include "plant.cpp"
+#include "../util/basicdefines.hpp"
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
+    glViewport(0, 0, width, height);
+}
+
+static void glfw_error_callback(int error, const char* description)
+{
+    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
+}
+
+int main() {
+    glfwSetErrorCallback(glfw_error_callback);
+    if (!glfwInit())
+        return -1;
+
+    #if defined(IMGUI_IMPL_OPENGL_ES2)
+        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
+        const char* glsl_version = "#version 100";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+    #elif defined(IMGUI_IMPL_OPENGL_ES3)
+        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
+        const char* glsl_version = "#version 300 es";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+    #elif defined(__APPLE__)
+        // GL 3.2 + GLSL 150
+        const char* glsl_version = "#version 150";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
+    #else
+        // GL 3.0 + GLSL 130
+        const char* glsl_version = "#version 130";
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
+        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
+    #endif
+
+    bool application_not_closed = true;
+    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "StupidSim", nullptr, nullptr);
+    if (window == nullptr) {
+        glfwTerminate();
+        return 1;
+    }
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1);    
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO();
+    (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+    ImGui::StyleColorsDark();
+    ImGuiStyle& style = ImGui::GetStyle();
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+
+    #ifdef __EMSCRIPTEN__
+        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
+    #endif
+    ImGui_ImplOpenGL3_Init(glsl_version);
+
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    planetSimUI planetApp;
+    NoisePreviewState noiseState;
+    PlantSimUI plantApp;
+
+    if (noiseState.layers.empty()) {
+        NoiseLayer defaultLayer;
+        strcpy(defaultLayer.name, "Base Terrain");
+        defaultLayer.type = NoiseType::Fractal;
+        noiseState.layers.push_back(defaultLayer);
+    }
+    updateNoiseTexture(noiseState);
+
+    while (!glfwWindowShouldClose(window)) {
+        glfwPollEvents();
+        glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+
+        ImGui::GetMainViewport();
+        drawNoiseLab(noiseState);
+        planetApp.renderUI(window);
+        plantApp.renderUI(window);
+
+        ImGui::Begin("Integration Control");
+        ImGui::Text("Bridge: Noise Lab -> Planet Sim");
+        ImGui::Separator();
+        
+        ImGui::TextColored(ImVec4(0.5f, 0.8f, 1.0f, 1.0f), "Current Noise Layers: %zu", noiseState.layers.size());
+        
+        if (ImGui::Button("APPLY CURRENT NOISE TO PLANET", ImVec2(-1, 50))) {
+            planetApp.applyNoise(noiseState);
+        }
+        
+        ImGui::End();
+
+        ImGui::Render();
+        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+        glfwSwapBuffers(window);
+    }
+
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    ImGui::DestroyContext();
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+    
+    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
+
+    return 0;
+}

tests/spritegen.cpp

@@ -1,239 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-#include <unordered_set>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/output/bmpwriter.hpp"
-#include "../util/timing_decorator.cpp"
-#include "../imgui/imgui.h"
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int numSeeds = 8;
-};
-
-Grid2 setup(AnimationConfig config) {
-    TIME_FUNCTION;
-    Grid2 grid;
-    std::vector<Vec2> pos;
-    std::vector<Vec4> colors;
-    std::vector<float> sizes;
-    for (int y = 0; y < config.height; ++y) {
-        for (int x = 0; x < config.width; ++x) {
-            float gradient = (x + y) / float(config.width + config.height - 2);
-            pos.push_back(Vec2(x,y));
-            colors.push_back(Vec4(gradient, gradient, gradient, 1.0f));
-            sizes.push_back(1.0f);
-        }
-    }
-    grid.bulkAddObjects(pos,colors,sizes);
-    return grid;
-}
-
-void Preview(Grid2 grid) {
-    TIME_FUNCTION;
-    int width;
-    int height;
-    //std::vector<uint8_t> rgbData;
-
-    frame rgbData = grid.getGridAsFrame(frame::colormap::RGB);
-    bool success = BMPWriter::saveBMP("output/grayscalesource.bmp", rgbData);
-    if (!success) {
-        std::cout << "yo! this failed in Preview" << std::endl;
-    }
-}
-
-std::vector<std::tuple<size_t, Vec2, Vec4>> pickSeeds(Grid2 grid, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::random_device rd;
-    std::mt19937 gen(rd());
-    std::uniform_int_distribution<> xDist(0, config.width - 1);
-    std::uniform_int_distribution<> yDist(0, config.height - 1);
-    std::uniform_real_distribution<> colorDist(0.2f, 0.8f);
-
-    std::vector<std::tuple<size_t, Vec2, Vec4>> seeds;
-
-    for (int i = 0; i < config.numSeeds; ++i) {
-        Vec2 point(xDist(gen), yDist(gen));
-        Vec4 color(colorDist(gen), colorDist(gen), colorDist(gen), 255);
-        size_t id = grid.getPositionVec(point);
-        grid.setColor(id, color);
-        seeds.push_back(std::make_tuple(id,point, color));
-    }
-    return seeds;
-}
-
-void expandPixel(Grid2& grid, AnimationConfig config, std::vector<std::tuple<size_t, Vec2, Vec4>>& seeds) {
-    TIME_FUNCTION;
-    std::vector<std::tuple<size_t, Vec2, Vec4>> newseeds; 
-
-    std::unordered_set<size_t> visitedThisFrame; 
-    for (const auto& seed : seeds) {
-        visitedThisFrame.insert(std::get<0>(seed));
-    }
-
-    //#pragma omp parallel for
-    for (const std::tuple<size_t, Vec2, Vec4>& seed : seeds) {
-        size_t id = std::get<0>(seed);
-        Vec2 seedPOS = std::get<1>(seed);
-        Vec4 seedColor = std::get<2>(seed);
-        std::vector<size_t> neighbors = grid.getNeighbors(id);
-        //grid.setSize(id, grid.getSize(id)+4);
-        for (size_t neighbor : neighbors) {
-            if (visitedThisFrame.count(neighbor)) {
-                continue;
-            }
-            visitedThisFrame.insert(neighbor);
-
-            Vec2 neipos = grid.getPositionID(neighbor);
-            Vec4 neighborColor = grid.getColor(neighbor);
-            float distance = seedPOS.distance(neipos);
-            float angle = seedPOS.directionTo(neipos);
-
-            float normalizedAngle = (angle + M_PI) / (2.0f * M_PI);
-            float blendFactor = 0.3f + 0.4f * std::sin(normalizedAngle * 2.0f * M_PI);
-            blendFactor = std::clamp(blendFactor, 0.1f, 0.9f);
-            
-            Vec4 newcolor = Vec4(
-                seedColor.r * blendFactor + neighborColor.r * (1.0f - blendFactor),
-                seedColor.g * (1.0f - blendFactor) + neighborColor.g * blendFactor,
-                seedColor.b * (0.5f + 0.5f * std::sin(normalizedAngle * 4.0f * M_PI)),
-                1.0f
-            );
-            
-            newcolor = newcolor.clamp(0.0f, 1.0f);
-
-            grid.setColor(neighbor, newcolor);
-            newseeds.emplace_back(neighbor, neipos, newcolor);
-        }
-    }
-    seeds.clear();
-    seeds.shrink_to_fit();
-    seeds = std::move(newseeds);
-}
-
-//bool exportavi(std::vector<std::vector<uint8_t>> frames, AnimationConfig config) {
-bool exportavi(std::vector<frame> frames, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    
-    std::cout << "Frame count: " << frames.size() << std::endl;
-    
-    // Log compression statistics for all frames
-    std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
-    size_t totalOriginalSize = 0;
-    size_t totalCompressedSize = 0;
-    
-    for (int i = 0; i < frames.size(); ++i) {    
-        totalOriginalSize += frames[i].getSourceSize();
-        totalCompressedSize += frames[i].getTotalCompressedSize();
-    }
-    
-    double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
-    double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
-    
-    std::cout << "\n=== Overall Compression Summary ===" << std::endl;
-    std::cout << "Total frames: " << frames.size() << std::endl;
-    std::cout << "Compressed frames: " << frames.size() << std::endl;
-    std::cout << "Total original size: " << totalOriginalSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalOriginalSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Total compressed size: " << totalCompressedSize << " bytes (" 
-                << std::fixed << std::setprecision(2) << (totalCompressedSize / (1024.0 * 1024.0)) << " MB)" << std::endl;
-    std::cout << "Overall compression ratio: " << std::fixed << std::setprecision(2) << overallRatio << ":1" << std::endl;
-    std::cout << "Overall space savings: " << std::fixed << std::setprecision(1) << overallSavings << "%" << std::endl;
-    
-    std::filesystem::path dir = "output";
-    if (!std::filesystem::exists(dir)) {
-        if (!std::filesystem::create_directories(dir)) {
-            std::cout << "Failed to create output directory!" << std::endl;
-            return false;
-        }
-    }
-    
-    bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
-    
-    if (success) {
-        // Check if file actually exists
-        if (std::filesystem::exists(filename)) {
-            auto file_size = std::filesystem::file_size(filename);
-            std::cout << "\nAVI file created successfully: " << filename 
-                      << " (" << file_size << " bytes, " 
-                      << std::fixed << std::setprecision(2) << (file_size / (1024.0 * 1024.0)) << " MB)" << std::endl;
-        } 
-    } else {
-        std::cout << "Failed to save AVI file!" << std::endl;
-    }
-    
-    return success;
-}
-
-void mainLogic(){
-    AnimationConfig config;
-    // std::cout << "g2c2175" << std::endl;
-    
-    Grid2 grid = setup(config);
-    // std::cout << "g2c2178" << std::endl;
-    Preview(grid);
-    std::vector<std::tuple<size_t, Vec2, Vec4>> seeds = pickSeeds(grid,config);
-    std::vector<frame> frames;
-
-    for (int i = 0; i < config.totalFrames; ++i){
-        expandPixel(grid,config,seeds);
-        
-        // Print compression info for this frame
-        if (i % 10 == 0 ) {
-            frame bgrframe;
-            std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
-            bgrframe = grid.getGridAsFrame(frame::colormap::BGR);
-            bgrframe.printCompressionStats();
-            //(bgrframe, i + 1);
-            frames.push_back(bgrframe);
-            //bgrframe.decompress();
-            //BMPWriter::saveBMP(std::format("output/grayscalesource.{}.bmp", i), bgrframe);
-            bgrframe.compressFrameLZ78();
-        }
-
-    }
-
-    exportavi(frames,config);
-}
-
-int main() {
-    static bool window = true;
-    ImGui::SetNextWindowSize(ImVec2(1110,667));
-    auto beg = ImGui::Begin("Gradient thing", &window);
-    if (beg) {
-
-        ImGui::SetCursorPos(ImVec2(435.5,200));
-        ImGui::PushItemWidth(200);
-        static int i1 = 123;
-        ImGui::InputInt("Width", &i1);
-        ImGui::PopItemWidth();
-
-        ImGui::SetCursorPos(ImVec2(432,166));
-        ImGui::PushItemWidth(200);
-        static int i2 = 123;
-        ImGui::InputInt("Height", &i2);
-        ImGui::PopItemWidth();
-
-        ImGui::SetCursorPos(ImVec2(533.5,271));
-        ImGui::Button("Start", ImVec2(43,19)); //remove size argument (ImVec2) to auto-resize
-
-        ImGui::SetCursorPos(ImVec2(400.5,366));
-        ImGui::PushItemWidth(200);
-        static int i6 = 123;
-        ImGui::InputInt("number of Seeds", &i6);
-        ImGui::PopItemWidth();
-
-    }
-    ImGui::End();
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-    return 0;
-}

tests/wateranim.cpp

@@ -1,423 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <random>
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-#include <unordered_set>
-#include "../util/grid/grid2.hpp"
-#include "../util/output/aviwriter.hpp"
-#include "../util/output/bmpwriter.hpp"
-#include "../util/timing_decorator.cpp"
-
-#include "../imgui/imgui.h"
-#include "../imgui/backends/imgui_impl_glfw.h"
-#include "../imgui/backends/imgui_impl_opengl3.h"
-#include <GLFW/glfw3.h>
-#include "../stb/stb_image.h"
-
-#include <thread>
-#include <atomic>
-#include <future>
-#include <mutex>
-#include <chrono>
-
-#ifndef M_PI
-#define M_PI = 3.1415
-#endif
-
-std::mutex m;
-std::atomic<bool> isGenerating{false};
-std::future<void> generationFuture;
-
-std::mutex previewMutex;
-std::atomic<bool> updatePreview{false};
-frame currentPreviewFrame;
-GLuint textu = 0;
-std::string previewText;
-
-struct Shared {
-    std::mutex mutex;
-    Grid2 grid;
-    bool hasNewFrame = false;
-    int currentFrame = 0;
-};
-
-struct AnimationConfig {
-    int width = 1024;
-    int height = 1024;
-    int totalFrames = 480;
-    float fps = 30.0f;
-    int noisemod = 42;
-};
-
-void Preview(Grid2& grid) {
-    TIME_FUNCTION;
-    int width;
-    int height;
-    //std::vector<uint8_t> rgbData;
-
-    frame rgbData = grid.getGridAsFrame(frame::colormap::RGB);
-    std::cout << "Frame looks like: " << rgbData << std::endl;
-    bool success = BMPWriter::saveBMP("output/grayscalesource.bmp", rgbData);
-    if (!success) {
-        std::cout << "yo! this failed in Preview" << std::endl;
-    }
-}
-
-void livePreview(const Grid2& grid) {
-    std::lock_guard<std::mutex> lock(previewMutex);
-    
-    currentPreviewFrame = grid.getGridAsFrame(frame::colormap::RGBA);
-
-    glGenTextures(1, &textu);
-    glBindTexture(GL_TEXTURE_2D, textu);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    
-    glBindTexture(GL_TEXTURE_2D, textu);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, currentPreviewFrame.getWidth(), currentPreviewFrame.getHeight(), 
-                 0, GL_RGBA, GL_UNSIGNED_BYTE, currentPreviewFrame.getData().data());
-    
-    updatePreview = true;
-}
-
-void flowWater(Grid2& grid, AnimationConfig config) {
-    
-}
-
-bool exportavi(std::vector<frame> frames, AnimationConfig config) {
-    TIME_FUNCTION;
-    std::string filename = "output/chromatic_transformation.avi";
-    
-    std::cout << "Frame count: " << frames.size() << std::endl;
-    
-    // Log compression statistics for all frames
-    std::cout << "\n=== Frame Compression Statistics ===" << std::endl;
-    size_t totalOriginalSize = 0;
-    size_t totalCompressedSize = 0;
-    
-    for (int i = 0; i < frames.size(); ++i) {    
-        totalOriginalSize += frames[i].getSourceSize();
-        totalCompressedSize += frames[i].getTotalCompressedSize();
-    }
-    
-    double overallRatio = static_cast<double>(totalOriginalSize) / totalCompressedSize;
-    double overallSavings = (1.0 - 1.0/overallRatio) * 100.0;
-        
-    std::filesystem::path dir = "output";
-    if (!std::filesystem::exists(dir)) {
-        if (!std::filesystem::create_directories(dir)) {
-            std::cout << "Failed to create output directory!" << std::endl;
-            return false;
-        }
-    }
-    
-    bool success = AVIWriter::saveAVIFromCompressedFrames(filename, frames, frames[0].getWidth(), frames[0].getHeight(), config.fps);
-    
-    if (!success) {
-        std::cout << "Failed to save AVI file!" << std::endl;
-    }
-    
-    return success;
-}
-
-void mainLogic(const AnimationConfig& config, Shared& state, int gradnoise) {
-    TIME_FUNCTION;
-    isGenerating = true;
-    try {
-        Grid2 grid;
-        if (gradnoise == 1) {
-            grid = grid.noiseGenGrid(0,0,config.height, config.width, 0.0, 1.0, false, config.noisemod);
-        }
-        grid.setDefault(Vec4(0,0,0,0));
-        {
-            std:: lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = 0;
-        }
-        std::cout << "generated grid" << std::endl;
-        Preview(grid);
-        std::cout << "generated preview" << std::endl;
-        std::vector<frame> frames;
-
-        for (int i = 0; i < config.totalFrames; ++i){
-            // Check if we should stop the generation
-            if (!isGenerating) {
-                std::cout << "Generation cancelled at frame " << i << std::endl;
-                return;
-            }
-            
-            flowWater(grid,config);
-            
-            std::lock_guard<std::mutex> lock(state.mutex);
-            state.grid = grid;
-            state.hasNewFrame = true;
-            state.currentFrame = i;
-
-            // Print compression info for this frame
-            if (i % 10 == 0 ) {
-                frame bgrframe;
-                std::cout << "Processing frame " << i + 1 << "/" << config.totalFrames << std::endl;
-                bgrframe = grid.getGridAsFrame(frame::colormap::BGR);
-                frames.push_back(bgrframe);
-                //bgrframe.decompress();
-                //BMPWriter::saveBMP(std::format("output/grayscalesource.{}.bmp", i), bgrframe);
-                bgrframe.compressFrameLZ78();
-                //bgrframe.printCompressionStats();
-            }
-        }
-        exportavi(frames,config);
-    }
-    catch (const std::exception& e) {
-        std::cerr << "errored at: " << e.what() << std::endl;
-    }
-    isGenerating = false;
-}
-
-// Function to cancel ongoing generation
-void cancelGeneration() {
-    if (isGenerating) {
-        isGenerating = false;
-        // Wait for the thread to finish (with timeout to avoid hanging)
-        if (generationFuture.valid()) {
-            auto status = generationFuture.wait_for(std::chrono::milliseconds(100));
-            if (status != std::future_status::ready) {
-                std::cout << "Waiting for generation thread to finish..." << std::endl;
-            }
-        }
-    }
-}
-
-static void glfw_error_callback(int error, const char* description)
-{
-    fprintf(stderr, "GLFW Error %d: %s\n", error, description);
-}
-
-int main() {
-    //static bool window = true;
-    glfwSetErrorCallback(glfw_error_callback);
-    if (!glfwInit()) {
-        std::cerr << "gui stuff is dumb in c++." << std::endl;
-        glfwTerminate();
-        return 1;
-    }
-    // COPIED VERBATIM FROM IMGUI.
-    #if defined(IMGUI_IMPL_OPENGL_ES2)
-        // GL ES 2.0 + GLSL 100 (WebGL 1.0)
-        const char* glsl_version = "#version 100";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(IMGUI_IMPL_OPENGL_ES3)
-        // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-        const char* glsl_version = "#version 300 es";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-    #elif defined(__APPLE__)
-        // GL 3.2 + GLSL 150
-        const char* glsl_version = "#version 150";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
-        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // Required on Mac
-    #else
-        // GL 3.0 + GLSL 130
-        const char* glsl_version = "#version 130";
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);  // 3.2+ only
-        //glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);            // 3.0+ only
-    #endif
-    //ImGui::SetNextWindowSize(ImVec2(1110,667));
-    //auto beg = ImGui::Begin("Gradient thing", &window);
-    //if (beg) {
-    // std::cout << "stuff breaks at 223" << std::endl;
-    bool application_not_closed = true;
-    //float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor());
-    GLFWwindow* window = glfwCreateWindow((int)(1280), (int)(800), "Chromatic gradient generator thing", nullptr, nullptr);
-    if (window == nullptr)
-        return 1;
-    glfwMakeContextCurrent(window);
-    glfwSwapInterval(1);
-    //IMGUI_CHECKVERSION(); //this might be more important than I realize. but cant run with it so currently ignoring. 
-    ImGui::CreateContext();
-    // std::cout << "context created" << std::endl;
-    ImGuiIO& io = ImGui::GetIO(); (void)io;
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    ImGui::StyleColorsDark();
-    ImGuiStyle& style = ImGui::GetStyle();
-    //style.ScaleAllSizes(1);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    //style.FontScaleDpi = 1; //will need to implement my own scaling at some point. currently just ignoring it.
-    ImGui_ImplGlfw_InitForOpenGL(window, true);
-
-
-    #ifdef __EMSCRIPTEN__
-        ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
-    #endif
-        ImGui_ImplOpenGL3_Init(glsl_version);
-
-
-    // std::cout << "created glfw window" << std::endl;
-
-
-    bool show_demo_window = true;
-    bool show_another_window = false;
-    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-    static float f = 30.0f;
-    static int i1 = 1024;
-    static int i2 = 1024;
-    static int i3 = 480;
-    static int noisemod = 42;
-    static float fs = 1.0;
-
-    std::future<void> mainlogicthread;
-    Shared state;
-    Grid2 grid;
-    AnimationConfig config;
-    previewText = "Please generate";
-    int gradnoise = true;
-    while (!glfwWindowShouldClose(window)) {
-        glfwPollEvents();
-
-        // Start the Dear ImGui frame
-        ImGui_ImplOpenGL3_NewFrame();
-        ImGui_ImplGlfw_NewFrame();
-        ImGui::NewFrame();
-        {
-
-            ImGui::Begin("settings");
-
-            ImGui::SliderFloat("fps", &f, 20.0f, 60.0f);
-            ImGui::SliderInt("width", &i1, 256, 4096);
-            ImGui::SliderInt("height", &i2, 256, 4096);
-            ImGui::SliderInt("frame count", &i3, 10, 5000);
-            ImGui::SliderInt("Noise Mod", &noisemod, 0, 1000);
-            ImGui::SliderFloat("Scale Preview", &fs, 0.0, 2.0);
-            ImGui::RadioButton("Gradient", &gradnoise, 0);
-            ImGui::RadioButton("Perlin Noise", &gradnoise, 1);
-
-            if (isGenerating) {
-                ImGui::BeginDisabled();
-            }
-            
-            if (ImGui::Button("Generate Animation")) {
-                config = AnimationConfig(i1, i2, i3, f, noisemod);
-                mainlogicthread = std::async(std::launch::async, mainLogic, config, std::ref(state), gradnoise);
-            }
-
-            if (isGenerating && textu != 0) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * fs, config.height * fs);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else if (isGenerating) {
-                ImGui::EndDisabled();
-                
-                ImGui::SameLine();
-                if (ImGui::Button("Cancel")) {
-                    cancelGeneration();
-                }
-                // Check for new frames from the generation thread
-                bool hasNewFrame = false;
-                {
-                    std::lock_guard<std::mutex> lock(state.mutex);
-                    if (state.hasNewFrame) {
-                        livePreview(state.grid);
-                        state.hasNewFrame = false;
-                        previewText = "Generating... Frame: " + std::to_string(state.currentFrame);
-                    }
-                }
-                
-                ImGui::Text(previewText.c_str());
-
-            } else if (textu != 0){
-                //ImGui::EndDisabled();
-                                
-                ImGui::Text(previewText.c_str());
-                
-                if (textu != 0) {
-                    ImVec2 imageSize = ImVec2(config.width * 0.5f, config.height * 0.5f);
-                    ImVec2 uv_min = ImVec2(0.0f, 0.0f);
-                    ImVec2 uv_max = ImVec2(1.0f, 1.0f);
-                    ImGui::Image((void*)(intptr_t)textu, imageSize, uv_min, uv_max);
-                } else {
-                    ImGui::Text("Generating preview...");
-                }
-                
-            } else {
-                ImGui::Text("No preview available");
-                ImGui::Text("Start generation to see live preview");
-            }
-            //std::cout << "sleeping" << std::endl;
-            std::this_thread::sleep_for(std::chrono::milliseconds(100));
-            //std::cout << "ending" << std::endl;
-            ImGui::End();
-        }
-
-        
-        // std::cout << "ending frame" << std::endl;
-        ImGui::Render();
-        int display_w, display_h;
-        glfwGetFramebufferSize(window, &display_w, &display_h);
-        glViewport(0, 0, display_w, display_h);
-        glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
-        glClear(GL_COLOR_BUFFER_BIT);
-        
-        // std::cout << "rendering" << std::endl;
-        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-
-        glfwSwapBuffers(window);
-        //mainlogicthread.join();
-        
-        // std::cout << "swapping buffers" << std::endl;
-    }
-    cancelGeneration();
-
-    
-    // std::cout << "shutting down" << std::endl;
-    ImGui_ImplOpenGL3_Shutdown();
-    ImGui_ImplGlfw_Shutdown();
-    ImGui::DestroyContext();
-
-    // std::cout << "destroying" << std::endl;
-    glfwDestroyWindow(window);
-    if (textu != 0) {
-        glDeleteTextures(1, &textu);
-        textu = 0;
-    }
-    glfwTerminate();
-    FunctionTimer::printStats(FunctionTimer::Mode::ENHANCED);
-    
-    // std::cout << "printing" << std::endl;
-    return 0;
-}
-//I need this: https://raais.github.io/ImStudio/
-// g++ -std=c++23 -O3 -march=native -o ./bin/g2gradc ./tests/g2chromatic2.cpp -I./imgui -L./imgui -limgui -lstb `pkg-config --cflags --libs glfw3` && ./bin/g2gradc

util/basicdefines.hpp

@@ -0,0 +1,305 @@
+#include <limits>
+#ifndef M_PI
+#define M_PI 3.14159265358979323846f
+#endif
+#ifndef EPSILON
+#define EPSILON 0.0000000000000000000000001f
+#endif
+#ifndef INF
+#define INF 2 ^ 31 - 1
+#endif
+
+#ifndef MARCHTABLES
+#define MARCHTABLES
+int edgeTable[256] = {
+    0x0,   0x109, 0x203, 0x30a, 0x406, 0x50f, 0x605, 0x70c,
+    0x80c, 0x905, 0xa0f, 0xb06, 0xc0a, 0xd03, 0xe09, 0xf00,
+    0x190, 0x99,  0x393, 0x29a, 0x596, 0x49f, 0x795, 0x69c,
+    0x99c, 0x895, 0xb9f, 0xa96, 0xd9a, 0xc93, 0xf99, 0xe90,
+    0x230, 0x339, 0x33,  0x13a, 0x636, 0x73f, 0x435, 0x53c,
+    0xa3c, 0xb35, 0x83f, 0x936, 0xe3a, 0xf33, 0xc39, 0xd30,
+    0x3a0, 0x2a9, 0x1a3, 0xaa,  0x7a6, 0x6af, 0x5a5, 0x4ac,
+    0xbac, 0xaa5, 0x9af, 0x8a6, 0xfaa, 0xea3, 0xda9, 0xca0,
+    0x460, 0x569, 0x663, 0x76a, 0x66,  0x16f, 0x265, 0x36c,
+    0xc6c, 0xd65, 0xe6f, 0xf66, 0x86a, 0x963, 0xa69, 0xb60,
+    0x5f0, 0x4f9, 0x7f3, 0x6fa, 0x1f6, 0xff,  0x3f5, 0x2fc,
+    0xdfc, 0xcf5, 0xfff, 0xef6, 0x9fa, 0x8f3, 0xbf9, 0xaf0,
+    0x650, 0x759, 0x453, 0x55a, 0x256, 0x35f, 0x55,  0x15c,
+    0xe5c, 0xf55, 0xc5f, 0xd56, 0xa5a, 0xb53, 0x859, 0x950,
+    0x7c0, 0x6c9, 0x5c3, 0x4ca, 0x3c6, 0x2cf, 0x1c5, 0xcc,
+    0xfcc, 0xec5, 0xdcf, 0xcc6, 0xbca, 0xac3, 0x9c9, 0x8c0,
+    0x8c0, 0x9c9, 0xac3, 0xbca, 0xcc6, 0xdcf, 0xec5, 0xfcc,
+    0xcc,  0x1c5, 0x2cf, 0x3c6, 0x4ca, 0x5c3, 0x6c9, 0x7c0,
+    0x950, 0x859, 0xb53, 0xa5a, 0xd56, 0xc5f, 0xf55, 0xe5c,
+    0x15c, 0x55,  0x35f, 0x256, 0x55a, 0x453, 0x759, 0x650,
+    0xaf0, 0xbf9, 0x8f3, 0x9fa, 0xef6, 0xfff, 0xcf5, 0xdfc,
+    0x2fc, 0x3f5, 0xff,  0x1f6, 0x6fa, 0x7f3, 0x4f9, 0x5f0,
+    0xb60, 0xa69, 0x963, 0x86a, 0xf66, 0xe6f, 0xd65, 0xc6c,
+    0x36c, 0x265, 0x16f, 0x66,  0x76a, 0x663, 0x569, 0x460,
+    0xca0, 0xda9, 0xea3, 0xfaa, 0x8a6, 0x9af, 0xaa5, 0xbac,
+    0x4ac, 0x5a5, 0x6af, 0x7a6, 0xaa,  0x1a3, 0x2a9, 0x3a0,
+    0xd30, 0xc39, 0xf33, 0xe3a, 0x936, 0x83f, 0xb35, 0xa3c,
+    0x53c, 0x435, 0x73f, 0x636, 0x13a, 0x33,  0x339, 0x230,
+    0xe90, 0xf99, 0xc93, 0xd9a, 0xa96, 0xb9f, 0x895, 0x99c,
+    0x69c, 0x795, 0x49f, 0x596, 0x29a, 0x393, 0x99,  0x190,
+    0xf00, 0xe09, 0xd03, 0xc0a, 0xb06, 0xa0f, 0x905, 0x80c,
+    0x70c, 0x605, 0x50f, 0x406, 0x30a, 0x203, 0x109, 0x0};
+
+int triTable[256][16] =
+    {{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 1, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 8, 3, 9, 8, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 2, 10, 0, 2, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {2, 8, 3, 2, 10, 8, 10, 9, 8, -1, -1, -1, -1, -1, -1, -1},
+     {3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 11, 2, 8, 11, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 9, 0, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 11, 2, 1, 9, 11, 9, 8, 11, -1, -1, -1, -1, -1, -1, -1},
+     {3, 10, 1, 11, 10, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 10, 1, 0, 8, 10, 8, 11, 10, -1, -1, -1, -1, -1, -1, -1},
+     {3, 9, 0, 3, 11, 9, 11, 10, 9, -1, -1, -1, -1, -1, -1, -1},
+     {9, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 3, 0, 7, 3, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 1, 9, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 1, 9, 4, 7, 1, 7, 3, 1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 4, 7, 3, 0, 4, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1},
+     {9, 2, 10, 9, 0, 2, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1},
+     {2, 10, 9, 2, 9, 7, 2, 7, 3, 7, 9, 4, -1, -1, -1, -1},
+     {8, 4, 7, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {11, 4, 7, 11, 2, 4, 2, 0, 4, -1, -1, -1, -1, -1, -1, -1},
+     {9, 0, 1, 8, 4, 7, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1},
+     {4, 7, 11, 9, 4, 11, 9, 11, 2, 9, 2, 1, -1, -1, -1, -1},
+     {3, 10, 1, 3, 11, 10, 7, 8, 4, -1, -1, -1, -1, -1, -1, -1},
+     {1, 11, 10, 1, 4, 11, 1, 0, 4, 7, 11, 4, -1, -1, -1, -1},
+     {4, 7, 8, 9, 0, 11, 9, 11, 10, 11, 0, 3, -1, -1, -1, -1},
+     {4, 7, 11, 4, 11, 9, 9, 11, 10, -1, -1, -1, -1, -1, -1, -1},
+     {9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 5, 4, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 5, 4, 1, 5, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {8, 5, 4, 8, 3, 5, 3, 1, 5, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 0, 8, 1, 2, 10, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1},
+     {5, 2, 10, 5, 4, 2, 4, 0, 2, -1, -1, -1, -1, -1, -1, -1},
+     {2, 10, 5, 3, 2, 5, 3, 5, 4, 3, 4, 8, -1, -1, -1, -1},
+     {9, 5, 4, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 11, 2, 0, 8, 11, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1},
+     {0, 5, 4, 0, 1, 5, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1},
+     {2, 1, 5, 2, 5, 8, 2, 8, 11, 4, 8, 5, -1, -1, -1, -1},
+     {10, 3, 11, 10, 1, 3, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1},
+     {4, 9, 5, 0, 8, 1, 8, 10, 1, 8, 11, 10, -1, -1, -1, -1},
+     {5, 4, 0, 5, 0, 11, 5, 11, 10, 11, 0, 3, -1, -1, -1, -1},
+     {5, 4, 8, 5, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1},
+     {9, 7, 8, 5, 7, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 3, 0, 9, 5, 3, 5, 7, 3, -1, -1, -1, -1, -1, -1, -1},
+     {0, 7, 8, 0, 1, 7, 1, 5, 7, -1, -1, -1, -1, -1, -1, -1},
+     {1, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 7, 8, 9, 5, 7, 10, 1, 2, -1, -1, -1, -1, -1, -1, -1},
+     {10, 1, 2, 9, 5, 0, 5, 3, 0, 5, 7, 3, -1, -1, -1, -1},
+     {8, 0, 2, 8, 2, 5, 8, 5, 7, 10, 5, 2, -1, -1, -1, -1},
+     {2, 10, 5, 2, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1},
+     {7, 9, 5, 7, 8, 9, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1},
+     {9, 5, 7, 9, 7, 2, 9, 2, 0, 2, 7, 11, -1, -1, -1, -1},
+     {2, 3, 11, 0, 1, 8, 1, 7, 8, 1, 5, 7, -1, -1, -1, -1},
+     {11, 2, 1, 11, 1, 7, 7, 1, 5, -1, -1, -1, -1, -1, -1, -1},
+     {9, 5, 8, 8, 5, 7, 10, 1, 3, 10, 3, 11, -1, -1, -1, -1},
+     {5, 7, 0, 5, 0, 9, 7, 11, 0, 1, 0, 10, 11, 10, 0, -1},
+     {11, 10, 0, 11, 0, 3, 10, 5, 0, 8, 0, 7, 5, 7, 0, -1},
+     {11, 10, 5, 7, 11, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 0, 1, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 8, 3, 1, 9, 8, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1},
+     {1, 6, 5, 2, 6, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 6, 5, 1, 2, 6, 3, 0, 8, -1, -1, -1, -1, -1, -1, -1},
+     {9, 6, 5, 9, 0, 6, 0, 2, 6, -1, -1, -1, -1, -1, -1, -1},
+     {5, 9, 8, 5, 8, 2, 5, 2, 6, 3, 2, 8, -1, -1, -1, -1},
+     {2, 3, 11, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {11, 0, 8, 11, 2, 0, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1},
+     {0, 1, 9, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1},
+     {5, 10, 6, 1, 9, 2, 9, 11, 2, 9, 8, 11, -1, -1, -1, -1},
+     {6, 3, 11, 6, 5, 3, 5, 1, 3, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 11, 0, 11, 5, 0, 5, 1, 5, 11, 6, -1, -1, -1, -1},
+     {3, 11, 6, 0, 3, 6, 0, 6, 5, 0, 5, 9, -1, -1, -1, -1},
+     {6, 5, 9, 6, 9, 11, 11, 9, 8, -1, -1, -1, -1, -1, -1, -1},
+     {5, 10, 6, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 3, 0, 4, 7, 3, 6, 5, 10, -1, -1, -1, -1, -1, -1, -1},
+     {1, 9, 0, 5, 10, 6, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1},
+     {10, 6, 5, 1, 9, 7, 1, 7, 3, 7, 9, 4, -1, -1, -1, -1},
+     {6, 1, 2, 6, 5, 1, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 5, 5, 2, 6, 3, 0, 4, 3, 4, 7, -1, -1, -1, -1},
+     {8, 4, 7, 9, 0, 5, 0, 6, 5, 0, 2, 6, -1, -1, -1, -1},
+     {7, 3, 9, 7, 9, 4, 3, 2, 9, 5, 9, 6, 2, 6, 9, -1},
+     {3, 11, 2, 7, 8, 4, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1},
+     {5, 10, 6, 4, 7, 2, 4, 2, 0, 2, 7, 11, -1, -1, -1, -1},
+     {0, 1, 9, 4, 7, 8, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1},
+     {9, 2, 1, 9, 11, 2, 9, 4, 11, 7, 11, 4, 5, 10, 6, -1},
+     {8, 4, 7, 3, 11, 5, 3, 5, 1, 5, 11, 6, -1, -1, -1, -1},
+     {5, 1, 11, 5, 11, 6, 1, 0, 11, 7, 11, 4, 0, 4, 11, -1},
+     {0, 5, 9, 0, 6, 5, 0, 3, 6, 11, 6, 3, 8, 4, 7, -1},
+     {6, 5, 9, 6, 9, 11, 4, 7, 9, 7, 11, 9, -1, -1, -1, -1},
+     {10, 4, 9, 6, 4, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 10, 6, 4, 9, 10, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1},
+     {10, 0, 1, 10, 6, 0, 6, 4, 0, -1, -1, -1, -1, -1, -1, -1},
+     {8, 3, 1, 8, 1, 6, 8, 6, 4, 6, 1, 10, -1, -1, -1, -1},
+     {1, 4, 9, 1, 2, 4, 2, 6, 4, -1, -1, -1, -1, -1, -1, -1},
+     {3, 0, 8, 1, 2, 9, 2, 4, 9, 2, 6, 4, -1, -1, -1, -1},
+     {0, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {8, 3, 2, 8, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1},
+     {10, 4, 9, 10, 6, 4, 11, 2, 3, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 2, 2, 8, 11, 4, 9, 10, 4, 10, 6, -1, -1, -1, -1},
+     {3, 11, 2, 0, 1, 6, 0, 6, 4, 6, 1, 10, -1, -1, -1, -1},
+     {6, 4, 1, 6, 1, 10, 4, 8, 1, 2, 1, 11, 8, 11, 1, -1},
+     {9, 6, 4, 9, 3, 6, 9, 1, 3, 11, 6, 3, -1, -1, -1, -1},
+     {8, 11, 1, 8, 1, 0, 11, 6, 1, 9, 1, 4, 6, 4, 1, -1},
+     {3, 11, 6, 3, 6, 0, 0, 6, 4, -1, -1, -1, -1, -1, -1, -1},
+     {6, 4, 8, 11, 6, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {7, 10, 6, 7, 8, 10, 8, 9, 10, -1, -1, -1, -1, -1, -1, -1},
+     {0, 7, 3, 0, 10, 7, 0, 9, 10, 6, 7, 10, -1, -1, -1, -1},
+     {10, 6, 7, 1, 10, 7, 1, 7, 8, 1, 8, 0, -1, -1, -1, -1},
+     {10, 6, 7, 10, 7, 1, 1, 7, 3, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 6, 1, 6, 8, 1, 8, 9, 8, 6, 7, -1, -1, -1, -1},
+     {2, 6, 9, 2, 9, 1, 6, 7, 9, 0, 9, 3, 7, 3, 9, -1},
+     {7, 8, 0, 7, 0, 6, 6, 0, 2, -1, -1, -1, -1, -1, -1, -1},
+     {7, 3, 2, 6, 7, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {2, 3, 11, 10, 6, 8, 10, 8, 9, 8, 6, 7, -1, -1, -1, -1},
+     {2, 0, 7, 2, 7, 11, 0, 9, 7, 6, 7, 10, 9, 10, 7, -1},
+     {1, 8, 0, 1, 7, 8, 1, 10, 7, 6, 7, 10, 2, 3, 11, -1},
+     {11, 2, 1, 11, 1, 7, 10, 6, 1, 6, 7, 1, -1, -1, -1, -1},
+     {8, 9, 6, 8, 6, 7, 9, 1, 6, 11, 6, 3, 1, 3, 6, -1},
+     {0, 9, 1, 11, 6, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {7, 8, 0, 7, 0, 6, 3, 11, 0, 11, 6, 0, -1, -1, -1, -1},
+     {7, 11, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 0, 8, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 1, 9, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {8, 1, 9, 8, 3, 1, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1},
+     {10, 1, 2, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, 3, 0, 8, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1},
+     {2, 9, 0, 2, 10, 9, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1},
+     {6, 11, 7, 2, 10, 3, 10, 8, 3, 10, 9, 8, -1, -1, -1, -1},
+     {7, 2, 3, 6, 2, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {7, 0, 8, 7, 6, 0, 6, 2, 0, -1, -1, -1, -1, -1, -1, -1},
+     {2, 7, 6, 2, 3, 7, 0, 1, 9, -1, -1, -1, -1, -1, -1, -1},
+     {1, 6, 2, 1, 8, 6, 1, 9, 8, 8, 7, 6, -1, -1, -1, -1},
+     {10, 7, 6, 10, 1, 7, 1, 3, 7, -1, -1, -1, -1, -1, -1, -1},
+     {10, 7, 6, 1, 7, 10, 1, 8, 7, 1, 0, 8, -1, -1, -1, -1},
+     {0, 3, 7, 0, 7, 10, 0, 10, 9, 6, 10, 7, -1, -1, -1, -1},
+     {7, 6, 10, 7, 10, 8, 8, 10, 9, -1, -1, -1, -1, -1, -1, -1},
+     {6, 8, 4, 11, 8, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 6, 11, 3, 0, 6, 0, 4, 6, -1, -1, -1, -1, -1, -1, -1},
+     {8, 6, 11, 8, 4, 6, 9, 0, 1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 4, 6, 9, 6, 3, 9, 3, 1, 11, 3, 6, -1, -1, -1, -1},
+     {6, 8, 4, 6, 11, 8, 2, 10, 1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, 3, 0, 11, 0, 6, 11, 0, 4, 6, -1, -1, -1, -1},
+     {4, 11, 8, 4, 6, 11, 0, 2, 9, 2, 10, 9, -1, -1, -1, -1},
+     {10, 9, 3, 10, 3, 2, 9, 4, 3, 11, 3, 6, 4, 6, 3, -1},
+     {8, 2, 3, 8, 4, 2, 4, 6, 2, -1, -1, -1, -1, -1, -1, -1},
+     {0, 4, 2, 4, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 9, 0, 2, 3, 4, 2, 4, 6, 4, 3, 8, -1, -1, -1, -1},
+     {1, 9, 4, 1, 4, 2, 2, 4, 6, -1, -1, -1, -1, -1, -1, -1},
+     {8, 1, 3, 8, 6, 1, 8, 4, 6, 6, 10, 1, -1, -1, -1, -1},
+     {10, 1, 0, 10, 0, 6, 6, 0, 4, -1, -1, -1, -1, -1, -1, -1},
+     {4, 6, 3, 4, 3, 8, 6, 10, 3, 0, 3, 9, 10, 9, 3, -1},
+     {10, 9, 4, 6, 10, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 9, 5, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, 4, 9, 5, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1},
+     {5, 0, 1, 5, 4, 0, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1},
+     {11, 7, 6, 8, 3, 4, 3, 5, 4, 3, 1, 5, -1, -1, -1, -1},
+     {9, 5, 4, 10, 1, 2, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1},
+     {6, 11, 7, 1, 2, 10, 0, 8, 3, 4, 9, 5, -1, -1, -1, -1},
+     {7, 6, 11, 5, 4, 10, 4, 2, 10, 4, 0, 2, -1, -1, -1, -1},
+     {3, 4, 8, 3, 5, 4, 3, 2, 5, 10, 5, 2, 11, 7, 6, -1},
+     {7, 2, 3, 7, 6, 2, 5, 4, 9, -1, -1, -1, -1, -1, -1, -1},
+     {9, 5, 4, 0, 8, 6, 0, 6, 2, 6, 8, 7, -1, -1, -1, -1},
+     {3, 6, 2, 3, 7, 6, 1, 5, 0, 5, 4, 0, -1, -1, -1, -1},
+     {6, 2, 8, 6, 8, 7, 2, 1, 8, 4, 8, 5, 1, 5, 8, -1},
+     {9, 5, 4, 10, 1, 6, 1, 7, 6, 1, 3, 7, -1, -1, -1, -1},
+     {1, 6, 10, 1, 7, 6, 1, 0, 7, 8, 7, 0, 9, 5, 4, -1},
+     {4, 0, 10, 4, 10, 5, 0, 3, 10, 6, 10, 7, 3, 7, 10, -1},
+     {7, 6, 10, 7, 10, 8, 5, 4, 10, 4, 8, 10, -1, -1, -1, -1},
+     {6, 9, 5, 6, 11, 9, 11, 8, 9, -1, -1, -1, -1, -1, -1, -1},
+     {3, 6, 11, 0, 6, 3, 0, 5, 6, 0, 9, 5, -1, -1, -1, -1},
+     {0, 11, 8, 0, 5, 11, 0, 1, 5, 5, 6, 11, -1, -1, -1, -1},
+     {6, 11, 3, 6, 3, 5, 5, 3, 1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 10, 9, 5, 11, 9, 11, 8, 11, 5, 6, -1, -1, -1, -1},
+     {0, 11, 3, 0, 6, 11, 0, 9, 6, 5, 6, 9, 1, 2, 10, -1},
+     {11, 8, 5, 11, 5, 6, 8, 0, 5, 10, 5, 2, 0, 2, 5, -1},
+     {6, 11, 3, 6, 3, 5, 2, 10, 3, 10, 5, 3, -1, -1, -1, -1},
+     {5, 8, 9, 5, 2, 8, 5, 6, 2, 3, 8, 2, -1, -1, -1, -1},
+     {9, 5, 6, 9, 6, 0, 0, 6, 2, -1, -1, -1, -1, -1, -1, -1},
+     {1, 5, 8, 1, 8, 0, 5, 6, 8, 3, 8, 2, 6, 2, 8, -1},
+     {1, 5, 6, 2, 1, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 3, 6, 1, 6, 10, 3, 8, 6, 5, 6, 9, 8, 9, 6, -1},
+     {10, 1, 0, 10, 0, 6, 9, 5, 0, 5, 6, 0, -1, -1, -1, -1},
+     {0, 3, 8, 5, 6, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {10, 5, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {11, 5, 10, 7, 5, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {11, 5, 10, 11, 7, 5, 8, 3, 0, -1, -1, -1, -1, -1, -1, -1},
+     {5, 11, 7, 5, 10, 11, 1, 9, 0, -1, -1, -1, -1, -1, -1, -1},
+     {10, 7, 5, 10, 11, 7, 9, 8, 1, 8, 3, 1, -1, -1, -1, -1},
+     {11, 1, 2, 11, 7, 1, 7, 5, 1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, 1, 2, 7, 1, 7, 5, 7, 2, 11, -1, -1, -1, -1},
+     {9, 7, 5, 9, 2, 7, 9, 0, 2, 2, 11, 7, -1, -1, -1, -1},
+     {7, 5, 2, 7, 2, 11, 5, 9, 2, 3, 2, 8, 9, 8, 2, -1},
+     {2, 5, 10, 2, 3, 5, 3, 7, 5, -1, -1, -1, -1, -1, -1, -1},
+     {8, 2, 0, 8, 5, 2, 8, 7, 5, 10, 2, 5, -1, -1, -1, -1},
+     {9, 0, 1, 5, 10, 3, 5, 3, 7, 3, 10, 2, -1, -1, -1, -1},
+     {9, 8, 2, 9, 2, 1, 8, 7, 2, 10, 2, 5, 7, 5, 2, -1},
+     {1, 3, 5, 3, 7, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 7, 0, 7, 1, 1, 7, 5, -1, -1, -1, -1, -1, -1, -1},
+     {9, 0, 3, 9, 3, 5, 5, 3, 7, -1, -1, -1, -1, -1, -1, -1},
+     {9, 8, 7, 5, 9, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {5, 8, 4, 5, 10, 8, 10, 11, 8, -1, -1, -1, -1, -1, -1, -1},
+     {5, 0, 4, 5, 11, 0, 5, 10, 11, 11, 3, 0, -1, -1, -1, -1},
+     {0, 1, 9, 8, 4, 10, 8, 10, 11, 10, 4, 5, -1, -1, -1, -1},
+     {10, 11, 4, 10, 4, 5, 11, 3, 4, 9, 4, 1, 3, 1, 4, -1},
+     {2, 5, 1, 2, 8, 5, 2, 11, 8, 4, 5, 8, -1, -1, -1, -1},
+     {0, 4, 11, 0, 11, 3, 4, 5, 11, 2, 11, 1, 5, 1, 11, -1},
+     {0, 2, 5, 0, 5, 9, 2, 11, 5, 4, 5, 8, 11, 8, 5, -1},
+     {9, 4, 5, 2, 11, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {2, 5, 10, 3, 5, 2, 3, 4, 5, 3, 8, 4, -1, -1, -1, -1},
+     {5, 10, 2, 5, 2, 4, 4, 2, 0, -1, -1, -1, -1, -1, -1, -1},
+     {3, 10, 2, 3, 5, 10, 3, 8, 5, 4, 5, 8, 0, 1, 9, -1},
+     {5, 10, 2, 5, 2, 4, 1, 9, 2, 9, 4, 2, -1, -1, -1, -1},
+     {8, 4, 5, 8, 5, 3, 3, 5, 1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 4, 5, 1, 0, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {8, 4, 5, 8, 5, 3, 9, 0, 5, 0, 3, 5, -1, -1, -1, -1},
+     {9, 4, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 11, 7, 4, 9, 11, 9, 10, 11, -1, -1, -1, -1, -1, -1, -1},
+     {0, 8, 3, 4, 9, 7, 9, 11, 7, 9, 10, 11, -1, -1, -1, -1},
+     {1, 10, 11, 1, 11, 4, 1, 4, 0, 7, 4, 11, -1, -1, -1, -1},
+     {3, 1, 4, 3, 4, 8, 1, 10, 4, 7, 4, 11, 10, 11, 4, -1},
+     {4, 11, 7, 9, 11, 4, 9, 2, 11, 9, 1, 2, -1, -1, -1, -1},
+     {9, 7, 4, 9, 11, 7, 9, 1, 11, 2, 11, 1, 0, 8, 3, -1},
+     {11, 7, 4, 11, 4, 2, 2, 4, 0, -1, -1, -1, -1, -1, -1, -1},
+     {11, 7, 4, 11, 4, 2, 8, 3, 4, 3, 2, 4, -1, -1, -1, -1},
+     {2, 9, 10, 2, 7, 9, 2, 3, 7, 7, 4, 9, -1, -1, -1, -1},
+     {9, 10, 7, 9, 7, 4, 10, 2, 7, 8, 7, 0, 2, 0, 7, -1},
+     {3, 7, 10, 3, 10, 2, 7, 4, 10, 1, 10, 0, 4, 0, 10, -1},
+     {1, 10, 2, 8, 7, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 9, 1, 4, 1, 7, 7, 1, 3, -1, -1, -1, -1, -1, -1, -1},
+     {4, 9, 1, 4, 1, 7, 0, 8, 1, 8, 7, 1, -1, -1, -1, -1},
+     {4, 0, 3, 7, 4, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {4, 8, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {9, 10, 8, 10, 11, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 0, 9, 3, 9, 11, 11, 9, 10, -1, -1, -1, -1, -1, -1, -1},
+     {0, 1, 10, 0, 10, 8, 8, 10, 11, -1, -1, -1, -1, -1, -1, -1},
+     {3, 1, 10, 11, 3, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 2, 11, 1, 11, 9, 9, 11, 8, -1, -1, -1, -1, -1, -1, -1},
+     {3, 0, 9, 3, 9, 11, 1, 2, 9, 2, 11, 9, -1, -1, -1, -1},
+     {0, 2, 11, 8, 0, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {3, 2, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {2, 3, 8, 2, 8, 10, 10, 8, 9, -1, -1, -1, -1, -1, -1, -1},
+     {9, 10, 2, 0, 9, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {2, 3, 8, 2, 8, 10, 0, 1, 8, 1, 10, 8, -1, -1, -1, -1},
+     {1, 10, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {1, 3, 8, 9, 1, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 9, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {0, 3, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+     {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}};
+#endif

util/compression/zstd.cpp

@@ -1,160 +0,0 @@
-#include "zstd.hpp"
-#include <cstdint>
-#include <vector>
-#include <cstring>
-#include <memory>
-#include <algorithm>
-
-// Implementation of ZSTD_CompressStream methods
-size_t ZSTD_CompressStream::compress_continue(const void* src, void* dst, size_t srcSize) {
-    // For compatibility with the original interface where dst size is inferred
-    size_t dstCapacity = ZSTD_compressBound(srcSize);
-    return this->compress(src, srcSize, dst, dstCapacity);
-}
-
-// Implementation of ZSTD_DecompressStream methods  
-size_t ZSTD_DecompressStream::decompress_continue(const void* src, void* dst, size_t srcSize) {
-    // Note: srcSize parameter is actually the destination buffer size
-    // This matches the confusing usage in the original VoxelOctree code
-    return this->decompress(src, srcSize, dst, srcSize);
-}
-
-// Helper functions for the compression system
-namespace {
-    // Simple hash function for LZ77-style matching
-    uint32_t computeHash(const uint8_t* data) {
-        return (data[0] << 16) | (data[1] << 8) | data[2];
-    }
-}
-
-// More advanced compression implementation
-size_t ZSTD_CompressStream::compress(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-    if (srcSize == 0 || dstCapacity == 0) return 0;
-    
-    const uint8_t* srcBytes = static_cast<const uint8_t*>(src);
-    uint8_t* dstBytes = static_cast<uint8_t*>(dst);
-    
-    size_t dstPos = 0;
-    size_t srcPos = 0;
-    
-    // Simple LZ77 compression
-    while (srcPos < srcSize && dstPos + 3 < dstCapacity) {
-        // Try to find a match in previous data
-        size_t bestMatchPos = 0;
-        size_t bestMatchLen = 0;
-        
-        // Look for matches in recent data (simplified search window)
-        size_t searchStart = (srcPos > 1024) ? srcPos - 1024 : 0;
-        for (size_t i = searchStart; i < srcPos && i + 3 <= srcSize; i++) {
-            if (srcBytes[i] == srcBytes[srcPos]) {
-                size_t matchLen = 1;
-                while (srcPos + matchLen < srcSize && 
-                       i + matchLen < srcPos &&
-                       srcBytes[i + matchLen] == srcBytes[srcPos + matchLen] &&
-                       matchLen < 255) {
-                    matchLen++;
-                }
-                
-                if (matchLen > bestMatchLen && matchLen >= 4) {
-                    bestMatchLen = matchLen;
-                    bestMatchPos = srcPos - i;
-                }
-            }
-        }
-        
-        if (bestMatchLen >= 4) {
-            // Encode match
-            dstBytes[dstPos++] = 0x80 | ((bestMatchLen - 4) & 0x7F);
-            dstBytes[dstPos++] = (bestMatchPos >> 8) & 0xFF;
-            dstBytes[dstPos++] = bestMatchPos & 0xFF;
-            srcPos += bestMatchLen;
-        } else {
-            // Encode literals
-            size_t literalStart = srcPos;
-            size_t maxLiteral = std::min(srcSize - srcPos, size_t(127));
-            
-            // Find run of non-compressible data
-            while (srcPos - literalStart < maxLiteral) {
-                // Check if next few bytes could be compressed
-                bool canCompress = false;
-                if (srcPos + 3 < srcSize) {
-                    // Simple heuristic: repeated bytes or patterns
-                    if (srcBytes[srcPos] == srcBytes[srcPos + 1] && 
-                        srcBytes[srcPos] == srcBytes[srcPos + 2]) {
-                        canCompress = true;
-                    }
-                }
-                if (canCompress) break;
-                srcPos++;
-            }
-            
-            size_t literalLength = srcPos - literalStart;
-            if (literalLength > 0) {
-                if (dstPos + literalLength + 1 > dstCapacity) {
-                    // Not enough space
-                    break;
-                }
-                
-                dstBytes[dstPos++] = literalLength & 0x7F;
-                memcpy(dstBytes + dstPos, srcBytes + literalStart, literalLength);
-                dstPos += literalLength;
-            }
-        }
-    }
-    
-    return dstPos;
-}
-
-size_t ZSTD_DecompressStream::decompress(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-    if (srcSize == 0 || dstCapacity == 0) return 0;
-    
-    const uint8_t* srcBytes = static_cast<const uint8_t*>(src);
-    uint8_t* dstBytes = static_cast<uint8_t*>(dst);
-    
-    size_t srcPos = 0;
-    size_t dstPos = 0;
-    
-    while (srcPos < srcSize && dstPos < dstCapacity) {
-        uint8_t header = srcBytes[srcPos++];
-        
-        if (header & 0x80) {
-            // Match
-            if (srcPos + 1 >= srcSize) break;
-            
-            size_t matchLen = (header & 0x7F) + 4;
-            uint16_t matchDist = (srcBytes[srcPos] << 8) | srcBytes[srcPos + 1];
-            srcPos += 2;
-            
-            if (matchDist == 0 || matchDist > dstPos) {
-                // Invalid match distance
-                break;
-            }
-            
-            size_t toCopy = std::min(matchLen, dstCapacity - dstPos);
-            size_t matchPos = dstPos - matchDist;
-            
-            for (size_t i = 0; i < toCopy; i++) {
-                dstBytes[dstPos++] = dstBytes[matchPos + i];
-            }
-            
-            if (toCopy < matchLen) {
-                break; // Output buffer full
-            }
-        } else {
-            // Literals
-            size_t literalLength = header;
-            if (srcPos + literalLength > srcSize) break;
-            
-            size_t toCopy = std::min(literalLength, dstCapacity - dstPos);
-            memcpy(dstBytes + dstPos, srcBytes + srcPos, toCopy);
-            srcPos += toCopy;
-            dstPos += toCopy;
-            
-            if (toCopy < literalLength) {
-                break; // Output buffer full
-            }
-        }
-    }
-    
-    return dstPos;
-}

util/compression/zstd.hpp

@@ -1,207 +0,0 @@
-#ifndef ZSTD_HPP
-#define ZSTD_HPP
-
-#include <cstdint>
-#include <vector>
-#include <cstring>
-#include <memory>
-
-// Simple ZSTD compression implementation (simplified version)
-class ZSTD_Stream {
-public:
-    virtual ~ZSTD_Stream() = default;
-};
-
-class ZSTD_CompressStream : public ZSTD_Stream {
-private:
-    std::vector<uint8_t> buffer;
-    size_t position;
-    
-public:
-    ZSTD_CompressStream() : position(0) {
-        buffer.reserve(1024 * 1024); // 1MB initial capacity
-    }
-    
-    void reset() {
-        buffer.clear();
-        position = 0;
-    }
-    
-    size_t compress(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-        // Simplified compression - in reality this would use actual ZSTD algorithm
-        // For this example, we'll just copy with simple RLE-like compression
-        
-        if (dstCapacity < srcSize) {
-            return 0; // Not enough space
-        }
-        
-        const uint8_t* srcBytes = static_cast<const uint8_t*>(src);
-        uint8_t* dstBytes = static_cast<uint8_t*>(dst);
-        
-        size_t dstPos = 0;
-        size_t srcPos = 0;
-        
-        while (srcPos < srcSize && dstPos + 2 < dstCapacity) {
-            // Simple RLE compression for repeated bytes
-            uint8_t current = srcBytes[srcPos];
-            size_t runLength = 1;
-            
-            while (srcPos + runLength < srcSize && 
-                   srcBytes[srcPos + runLength] == current && 
-                   runLength < 127) {
-                runLength++;
-            }
-            
-            if (runLength > 3) {
-                // Encode as RLE
-                dstBytes[dstPos++] = 0x80 | (runLength & 0x7F);
-                dstBytes[dstPos++] = current;
-                srcPos += runLength;
-            } else {
-                // Encode as literal run
-                size_t literalStart = srcPos;
-                while (srcPos < srcSize && 
-                       (srcPos - literalStart < 127) &&
-                       (srcPos + 1 >= srcSize || 
-                        srcBytes[srcPos] != srcBytes[srcPos + 1] ||
-                        srcPos + 2 >= srcSize || 
-                        srcBytes[srcPos] != srcBytes[srcPos + 2])) {
-                    srcPos++;
-                }
-                
-                size_t literalLength = srcPos - literalStart;
-                if (dstPos + literalLength + 1 > dstCapacity) {
-                    break;
-                }
-                
-                dstBytes[dstPos++] = literalLength & 0x7F;
-                memcpy(dstBytes + dstPos, srcBytes + literalStart, literalLength);
-                dstPos += literalLength;
-            }
-        }
-        
-        return dstPos;
-    }
-    
-    size_t compress_continue(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-        return compress(src, srcSize, dst, dstCapacity);
-    }
-    
-    const std::vector<uint8_t>& getBuffer() const { return buffer; }
-};
-
-class ZSTD_DecompressStream : public ZSTD_Stream {
-private:
-    size_t position;
-    
-public:
-    ZSTD_DecompressStream() : position(0) {}
-    
-    void reset() {
-        position = 0;
-    }
-    
-    size_t decompress(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-        const uint8_t* srcBytes = static_cast<const uint8_t*>(src);
-        uint8_t* dstBytes = static_cast<uint8_t*>(dst);
-        
-        size_t srcPos = 0;
-        size_t dstPos = 0;
-        
-        while (srcPos < srcSize && dstPos < dstCapacity) {
-            uint8_t header = srcBytes[srcPos++];
-            
-            if (header & 0x80) {
-                // RLE encoded
-                size_t runLength = header & 0x7F;
-                if (srcPos >= srcSize) break;
-                
-                uint8_t value = srcBytes[srcPos++];
-                
-                size_t toCopy = std::min(runLength, dstCapacity - dstPos);
-                memset(dstBytes + dstPos, value, toCopy);
-                dstPos += toCopy;
-                
-                if (toCopy < runLength) {
-                    break; // Output buffer full
-                }
-            } else {
-                // Literal data
-                size_t literalLength = header;
-                if (srcPos + literalLength > srcSize) break;
-                
-                size_t toCopy = std::min(literalLength, dstCapacity - dstPos);
-                memcpy(dstBytes + dstPos, srcBytes + srcPos, toCopy);
-                srcPos += toCopy;
-                dstPos += toCopy;
-                
-                if (toCopy < literalLength) {
-                    break; // Output buffer full
-                }
-            }
-        }
-        
-        return dstPos;
-    }
-    
-    size_t decompress_continue(const void* src, size_t srcSize, void* dst, size_t dstCapacity) {
-        return decompress(src, srcSize, dst, dstCapacity);
-    }
-};
-
-// Type definitions for compatibility with original code
-using ZSTD_stream_t = ZSTD_CompressStream;
-
-// Stream creation functions
-inline ZSTD_CompressStream* ZSTD_createStream() {
-    return new ZSTD_CompressStream();
-}
-
-inline ZSTD_DecompressStream* ZSTD_createStreamDecode() {
-    return new ZSTD_DecompressStream();
-}
-
-// Stream free functions
-inline void ZSTD_freeStream(ZSTD_Stream* stream) {
-    delete stream;
-}
-
-inline void ZSTD_freeStreamDecode(ZSTD_Stream* stream) {
-    delete stream;
-}
-
-// Stream reset functions
-inline void ZSTD_resetStream(ZSTD_CompressStream* stream) {
-    if (stream) stream->reset();
-}
-
-inline void ZSTD_setStreamDecode(ZSTD_DecompressStream* stream, const void* dict, size_t dictSize) {
-    if (stream) stream->reset();
-    // Note: dict parameter is ignored in this simplified version
-    (void)dict;
-    (void)dictSize;
-}
-
-// Compression functions
-inline size_t ZSTD_compressBound(size_t srcSize) {
-    // Worst case: no compression + 1 byte header per 127 bytes
-    return srcSize + (srcSize / 127) + 1;
-}
-
-inline size_t ZSTD_Compress_continue(ZSTD_CompressStream* stream, 
-                                     const void* src, void* dst, 
-                                     size_t srcSize) {
-    if (!stream) return 0;
-    return stream->compress_continue(src, srcSize, dst, ZSTD_compressBound(srcSize));
-}
-
-inline size_t ZSTD_Decompress_continue(ZSTD_DecompressStream* stream,
-                                       const void* src, void* dst,
-                                       size_t srcSize) {
-    if (!stream) return 0;
-    // Note: srcSize is actually the destination size in the original code
-    // This is confusing but matches the usage in VoxelOctree
-    return stream->decompress_continue(src, srcSize, dst, srcSize);
-}
-
-#endif // ZSTD_HPP

util/fp8.hpp

@@ -1,268 +0,0 @@
-// fp8.hpp
-#pragma once
-#include <cstdint>
-#include <cstring>
-#include <cmath>
-#include <type_traits>
-
-#ifdef __CUDACC__
-#include <cuda_fp16.h>
-#include <cuda_runtime.h>
-#endif
-
-class fp8_e4m3 {
-private:
-    uint8_t data;
-
-public:
-    // Constructors
-    __host__ __device__ fp8_e4m3() : data(0) {}
-    
-    __host__ __device__ explicit fp8_e4m3(uint8_t val) : data(val) {}
-    
-    // Conversion from float32
-    __host__ __device__ explicit fp8_e4m3(float f) {
-        #ifdef __CUDACC__
-        data = float_to_fp8(f);
-        #else
-        data = cpu_float_to_fp8(f);
-        #endif
-    }
-    
-    // Conversion from float16 (CUDA only)
-    #ifdef __CUDACC__
-    __host__ __device__ explicit fp8_e4m3(__half h) {
-        data = half_to_fp8(h);
-    }
-    #endif
-    
-    // Conversion to float32
-    __host__ __device__ operator float() const {
-        #ifdef __CUDACC__
-        return fp8_to_float(data);
-        #else
-        return cpu_fp8_to_float(data);
-        #endif
-    }
-    
-    // Arithmetic operators
-    __host__ __device__ fp8_e4m3 operator+(const fp8_e4m3& other) const {
-        return fp8_e4m3(float(*this) + float(other));
-    }
-    
-    __host__ __device__ fp8_e4m3 operator-(const fp8_e4m3& other) const {
-        return fp8_e4m3(float(*this) - float(other));
-    }
-    
-    __host__ __device__ fp8_e4m3 operator*(const fp8_e4m3& other) const {
-        return fp8_e4m3(float(*this) * float(other));
-    }
-    
-    __host__ __device__ fp8_e4m3 operator/(const fp8_e4m3& other) const {
-        return fp8_e4m3(float(*this) / float(other));
-    }
-    
-    // Compound assignment operators
-    __host__ __device__ fp8_e4m3& operator+=(const fp8_e4m3& other) {
-        *this = fp8_e4m3(float(*this) + float(other));
-        return *this;
-    }
-    
-    __host__ __device__ fp8_e4m3& operator-=(const fp8_e4m3& other) {
-        *this = fp8_e4m3(float(*this) - float(other));
-        return *this;
-    }
-    
-    __host__ __device__ fp8_e4m3& operator*=(const fp8_e4m3& other) {
-        *this = fp8_e4m3(float(*this) * float(other));
-        return *this;
-    }
-    
-    __host__ __device__ fp8_e4m3& operator/=(const fp8_e4m3& other) {
-        *this = fp8_e4m3(float(*this) / float(other));
-        return *this;
-    }
-    
-    // Comparison operators
-    __host__ __device__ bool operator==(const fp8_e4m3& other) const {
-        // Handle NaN and ±0.0 cases
-        if ((data & 0x7F) == 0x7F) return false; // NaN
-        if (data == other.data) return true;
-        return false;
-    }
-    
-    __host__ __device__ bool operator!=(const fp8_e4m3& other) const {
-        return !(*this == other);
-    }
-    
-    __host__ __device__ bool operator<(const fp8_e4m3& other) const {
-        return float(*this) < float(other);
-    }
-    
-    __host__ __device__ bool operator>(const fp8_e4m3& other) const {
-        return float(*this) > float(other);
-    }
-    
-    __host__ __device__ bool operator<=(const fp8_e4m3& other) const {
-        return float(*this) <= float(other);
-    }
-    
-    __host__ __device__ bool operator>=(const fp8_e4m3& other) const {
-        return float(*this) >= float(other);
-    }
-    
-    // Get raw data
-    __host__ __device__ uint8_t get_raw() const { return data; }
-    
-    // Special values
-    __host__ __device__ static fp8_e4m3 zero() { return fp8_e4m3(0x00); }
-    __host__ __device__ static fp8_e4m3 one() { return fp8_e4m3(0x3C); } // 1.0
-    __host__ __device__ static fp8_e4m3 nan() { return fp8_e4m3(0x7F); }
-    __host__ __device__ static fp8_e4m3 inf() { return fp8_e4m3(0x78); } // +inf
-    __host__ __device__ static fp8_e4m3 neg_inf() { return fp8_e4m3(0xF8); } // -inf
-    
-    // Memory operations
-    __host__ __device__ static void memcpy(void* dst, const void* src, size_t count) {
-        ::memcpy(dst, src, count);
-    }
-    
-    __host__ __device__ static void memset(void* ptr, int value, size_t count) {
-        ::memset(ptr, value, count);
-    }
-    
-private:
-    // CPU implementation (fast bit manipulation)
-    __host__ __device__ static uint8_t cpu_float_to_fp8(float f) {
-        uint32_t f_bits;
-        memcpy(&f_bits, &f, sizeof(float));
-        
-        uint32_t sign = (f_bits >> 31) & 0x1;
-        int32_t exp = ((f_bits >> 23) & 0xFF) - 127;
-        uint32_t mantissa = f_bits & 0x7FFFFF;
-        
-        // Handle special cases
-        if (exp == 128) { // NaN or Inf
-            return (sign << 7) | 0x7F; // Preserve sign for NaN/Inf
-        }
-        
-        // Denormal handling
-        if (exp < -6) {
-            return sign << 7; // Underflow to zero
-        }
-        
-        // Clamp exponent to e4m3 range [-6, 7]
-        if (exp > 7) {
-            return (sign << 7) | 0x78; // Overflow to inf
-        }
-        
-        // Convert to fp8 format
-        uint32_t fp8_exp = (exp + 6) & 0xF; // Bias: -6 -> 0, 7 -> 13
-        uint32_t fp8_mant = mantissa >> 20; // Keep top 3 bits
-        
-        // Round to nearest even
-        uint32_t rounding_bit = (mantissa >> 19) & 1;
-        uint32_t sticky_bits = (mantissa & 0x7FFFF) ? 1 : 0;
-        if (rounding_bit && (fp8_mant & 1 || sticky_bits)) {
-            fp8_mant++;
-            if (fp8_mant > 0x7) { // Mantissa overflow
-                fp8_mant = 0;
-                fp8_exp++;
-                if (fp8_exp > 0xF) { // Exponent overflow
-                    return (sign << 7) | 0x78; // Infinity
-                }
-            }
-        }
-        
-        return (sign << 7) | (fp8_exp << 3) | (fp8_mant & 0x7);
-    }
-    
-    __host__ __device__ static float cpu_fp8_to_float(uint8_t fp8) {
-        uint32_t sign = (fp8 >> 7) & 0x1;
-        uint32_t exp = (fp8 >> 3) & 0xF;
-        uint32_t mant = fp8 & 0x7;
-        
-        // Handle special cases
-        if (exp == 0xF) { // NaN or Inf
-            uint32_t f_bits = (sign << 31) | (0xFF << 23) | (mant << 20);
-            float result;
-            memcpy(&result, &f_bits, sizeof(float));
-            return result;
-        }
-        
-        if (exp == 0) {
-            // Denormal/subnormal
-            if (mant == 0) return sign ? -0.0f : 0.0f;
-            // Convert denormal
-            exp = -6;
-            mant = mant << 1;
-        } else {
-            exp -= 6; // Remove bias
-        }
-        
-        // Convert to float32
-        uint32_t f_exp = (exp + 127) & 0xFF;
-        uint32_t f_mant = mant << 20;
-        uint32_t f_bits = (sign << 31) | (f_exp << 23) | f_mant;
-        
-        float result;
-        memcpy(&result, &f_bits, sizeof(float));
-        return result;
-    }
-    
-    // CUDA implementation (using intrinsics when available)
-    #ifdef __CUDACC__
-    __device__ static uint8_t float_to_fp8(float f) {
-        #if __CUDA_ARCH__ >= 890  // Hopper+ has native FP8 support
-        return __float_to_fp8_rn(f);
-        #else
-        return cpu_float_to_fp8(f);
-        #endif
-    }
-    
-    __device__ static float fp8_to_float(uint8_t fp8) {
-        #if __CUDA_ARCH__ >= 890
-        return __fp8_to_float(fp8);
-        #else
-        return cpu_fp8_to_float(fp8);
-        #endif
-    }
-    
-    __device__ static uint8_t half_to_fp8(__half h) {
-        return float_to_fp8(__half2float(h));
-    }
-    #else
-    // For non-CUDA, use CPU versions
-    __host__ __device__ static uint8_t float_to_fp8(float f) {
-        return cpu_float_to_fp8(f);
-    }
-    
-    __host__ __device__ static float fp8_to_float(uint8_t fp8) {
-        return cpu_fp8_to_float(fp8);
-    }
-    #endif
-};
-
-// Vectorized operations for performance
-namespace fp8_ops {
-    // Convert array of floats to fp8 (efficient batch conversion)
-    static void convert_float_to_fp8(uint8_t* dst, const float* src, size_t count) {
-        #pragma omp parallel for simd if(count > 1024)
-        for (size_t i = 0; i < count; ++i) {
-            dst[i] = fp8_e4m3(src[i]).get_raw();
-        }
-    }
-    
-    // Convert array of fp8 to floats
-    static void convert_fp8_to_float(float* dst, const uint8_t* src, size_t count) {
-        #pragma omp parallel for simd if(count > 1024)
-        for (size_t i = 0; i < count; ++i) {
-            dst[i] = fp8_e4m3(src[i]);
-        }
-    }
-    
-    // Direct memory operations
-    static void memset_fp8(void* ptr, fp8_e4m3 value, size_t count) {
-        uint8_t val = value.get_raw();
-        ::memset(ptr, val, count);
-    }
-}

util/grid/camera.hpp

@@ -0,0 +1,155 @@
+#ifndef camera_hpp
+#define camera_hpp
+
+#include "../../eigen/Eigen/Dense"
+#include <cmath>
+#include "../basicdefines.hpp"
+
+using Eigen::Vector3f;
+using Eigen::Matrix3f;
+
+struct Camera {
+    Vector3f origin;
+    Vector3f direction;
+    Vector3f up;
+    float fov;
+    float movementSpeed;
+    float rotationSpeed;
+
+    Camera() : origin(Vector3f(0,0,0)), direction(Vector3f(0,0,0)), up(Vector3f(0,0,0)), fov(80), movementSpeed(10), rotationSpeed(10) {}
+    
+    Camera(const Vector3f& pos, const Vector3f& viewdir, const Vector3f& up, float fov = 80,
+           float moveSpeed = 1.0f, float rotSpeed = 0.5f) 
+        : origin(pos), direction(viewdir.normalized()), up(up.normalized()), fov(fov), movementSpeed(moveSpeed), rotationSpeed(rotSpeed) {}
+    
+    void rotateYaw(float angle) {
+        angle *= rotationSpeed;
+        Matrix3f rotation;
+        rotation = Eigen::AngleAxisf(angle, up);
+        direction = rotation * direction;
+        direction.normalize();
+    }
+    
+    void rotatePitch(float angle) {
+        angle *= rotationSpeed;
+        Vector3f right = direction.cross(up).normalized();
+        
+        // Rotate around right vector (pitch)
+        Matrix3f rotation;
+        rotation = Eigen::AngleAxisf(angle, right);
+        direction = rotation * direction;
+        direction.normalize();
+        
+        // Recalculate up vector to maintain orthogonality
+        up = right.cross(direction).normalized();
+    }
+
+    void moveForward(float distance) {
+        origin += forward() * distance * movementSpeed;
+    }
+    
+    void moveBackward(float distance) {
+        origin -= forward() * distance * movementSpeed;
+    }
+    
+    void moveRight(float distance) {
+        origin += right() * distance * movementSpeed;
+    }
+    
+    void moveLeft(float distance) {
+        origin -= right() * distance * movementSpeed;
+    }
+    
+    void moveUp(float distance) {
+        origin += up * distance * movementSpeed;
+    }
+    
+    void moveDown(float distance) {
+        origin -= up * distance * movementSpeed;
+    }
+
+    Vector3f forward() const {
+        return direction.normalized();
+    }
+
+    Vector3f right() const {
+        return forward().cross(up).normalized();
+    }
+
+    float fovRad() const {
+        return fov * (M_PI / 180.0f);
+    }
+    
+    // Look at a specific point
+    void lookAt(const Vector3f& target) {
+        direction = (target - origin).normalized();
+        
+        // Recalculate up vector
+        Vector3f worldUp(0, 1, 0);
+        if (direction.cross(worldUp).norm() < 0.001f) {
+            worldUp = Vector3f(0, 0, 1);
+        }
+        
+        Vector3f right = direction.cross(worldUp).normalized();
+        up = right.cross(direction).normalized();
+    }
+    
+    // Set position directly
+    void setPosition(const Vector3f& pos) {
+        origin = pos;
+    }
+    
+    // Set view direction directly
+    void setDirection(const Vector3f& dir) {
+        direction = dir.normalized();
+        // Recalculate up
+        Vector3f worldUp(0, 1, 0);
+        Vector3f right = direction.cross(worldUp).normalized();
+        up = right.cross(direction).normalized();
+    }
+    
+    // Get view matrix (lookAt matrix)
+    Eigen::Matrix4f getViewMatrix() const {
+        Vector3f f = forward();
+        Vector3f r = right();
+        Vector3f u = up;
+        
+        Eigen::Matrix4f view = Eigen::Matrix4f::Identity();
+        
+        view(0, 0) = r.x(); view(0, 1) = r.y(); view(0, 2) = r.z();
+        view(1, 0) = u.x(); view(1, 1) = u.y(); view(1, 2) = u.z();
+        view(2, 0) = -f.x(); view(2, 1) = -f.y(); view(2, 2) = -f.z();
+        
+        view(0, 3) = -r.dot(origin);
+        view(1, 3) = -u.dot(origin);
+        view(2, 3) = f.dot(origin);
+        
+        return view;
+    }
+    
+    // Get projection matrix (perspective)
+    Eigen::Matrix4f getProjectionMatrix(float aspectRatio, float nearPlane = 0.1f, float farPlane = 1000.0f) const {
+        float fovrad = fovRad();
+        float tanHalfFov = tan(fovrad / 2.0f);
+        
+        Eigen::Matrix4f projection = Eigen::Matrix4f::Zero();
+        
+        projection(0, 0) = 1.0f / (aspectRatio * tanHalfFov);
+        projection(1, 1) = 1.0f / tanHalfFov;
+        projection(2, 2) = -(farPlane + nearPlane) / (farPlane - nearPlane);
+        projection(3, 2) = -1.0f;
+        projection(2, 3) = -(2.0f * farPlane * nearPlane) / (farPlane - nearPlane);
+        
+        return projection;
+    }
+    
+    void mouseLook(float deltaX, float deltaY) {
+        float yaw = -deltaX * 0.001f;
+        float pitch = -deltaY * 0.001f;
+        
+        rotateYaw(yaw);
+        rotatePitch(pitch);
+    }
+};
+
+#endif

util/grid/grid32.hpp

@@ -1,118 +0,0 @@
-#ifndef GRID_HPP
-#define GRID_HPP
-
-#include "../vectorlogic/vec3.hpp"
-#include "../vectorlogic/vec4.hpp"
-#include "../noise/pnoise2.hpp"
-#include <unordered_map>
-#include <array>
-
-//template <typename DataType, int Dimension>
-class Node {
-    //static_assert(Dimension == 2 || Dimension == 3, "Dimensions must be 2 or 3");
-private:
-public:
-    NodeType type;
-    Vec3f minBounds;
-    Vec3f maxBounds;
-    Vec4ui8 color;
-    enum NodeType {
-        BRANCH,
-        LEAF
-    };
-    std::array<Node, 8> children;
-    Node(const Vec3f min, const Vec3f max, NodeType t = LEAF) : type(t), minBounds(min), maxBounds(max), color(0,0,0,0) {}
-
-    Vec3f getCenter() const {
-        return (minBounds + maxBounds) * 0.5f;
-    }
-
-    int getChildIndex(const Vec3f& pos) const {
-        Vec3f c = getCenter();
-        int index = 0;
-        if (pos.x >= c.x) index |= 1;
-        if (pos.y >= c.y) index |= 2;
-        if (pos.z >= c.z) index |= 4;
-        return index;
-    }
-
-    std::pair<Vec3f, Vec3f> getChildBounds(int childIndex) const {
-        Vec3f c = getCenter();
-        Vec3f cMin = minBounds;
-        Vec3f cMax = maxBounds;
-        if (childIndex & 1) cMin.x = c.x;
-        else cMax.x = c.x;
-
-        if (childIndex & 2) cMin.y = c.y;
-        else cMax.y = c.y;
-        
-        if (childIndex & 4) cMin.z = c.z;
-        else cMax.z = c.z;
-
-        return {cMin, cMax};
-    }
-
-};
-
-class Grid {
-private:
-    Node root;
-    Vec4ui8 DefaultBackgroundColor;
-    PNoise2 noisegen;
-    std::unordered_map<Vec3f, Node, Vec3f::Hash> Cache;
-public:
-    Grid() : {
-        root = Node(Vec3f(0), Vec3f(0), Node::NodeType::BRANCH);
-    };
-
-    size_t insertVoxel(const Vec3f& pos, const Vec4ui8& color) {
-        if (!contains(pos)) {
-            return -1;
-        }
-        return insertRecusive(root.get(), pos, color, 0);
-    }
-
-    void removeVoxel(const Vec3f& pos) {
-        bool removed = removeRecursive(root.get(), pos, 0);
-        if (removed) {
-            Cache.erase(pos);
-        }
-    }
-
-    Vec4ui8 getVoxel(const Vec3f& pos) const {
-        Node* node = findNode(root.get(), pos, 0);
-        if (node && node->isLeaf()) {
-            return node->color;
-        }
-        return DefaultBackgroundColor;
-    }
-
-    bool hasVoxel(const Vec3f& pos) const {
-        Node* node = findNode(root.get(), pos, 0);
-        return node && node->isLeaf();
-    }
-
-    bool rayIntersect(const Ray3& ray, Vec3f& hitPos, Vec4ui8& hitColor) const {
-        return rayintersectRecursive(root.get(), ray, hitPos, hitColor);
-    }
-
-    std::unordered_map<Vec3f, Vec4ui8> queryRegion(const Vec3f& min, const Vec3f& max) const {
-        std::unordered_map<Vec3f, Vec4ui8> result;
-        queryRegionRecuse(root.get(), min, max, result);
-        return result;
-    }
-
-    Grid& noiseGen(const Vec3f& min, const Vec3f& max, float minc = 0.1f, float maxc = 1.0f, bool genColor = true, int noiseMod = 42) {
-        TIME_FUNCTION;
-        noisegen = PNoise2(noiseMod);
-        std::vector<Vec3f> poses;
-        std::vector<Vec4ui8> colors;
-        
-        size_t estimatedSize = (max.x - min.x) * (max.y - min.y) * (max.z - min.z) * (maxc - minc);
-        poses.reserve(estimatedSize);
-        colors.reserve(estimatedSize);
-        
-    }
-};
-
-#endif

util/grid/gridmesh.hpp

@@ -0,0 +1,253 @@
+#ifndef GRIDMESH_HPP
+#define GRIDMESH_HPP
+
+#include "grid3eigen.hpp"
+#include "mesh.hpp"
+#include "../basicdefines.hpp"
+#include <vector>
+#include <limits>
+#include <memory>
+#include <unordered_map>
+#include <map>
+#include <cmath>
+
+struct GridPoint {
+    Eigen::Vector3f pos;
+    float val;
+    Eigen::Vector3f color; // Interpolated color field
+};
+
+struct GridCell {
+    GridPoint p[8];
+};
+
+template<typename T>
+class MetaballMesher {
+private:
+    float _resolution; 
+    float _isoLevel;
+    float _influenceRadius;
+
+    void vertexInterp(float isolevel, GridPoint p1, GridPoint p2, Eigen::Vector3f& outPos, Eigen::Vector3f& outColor) {
+        if (std::abs(p1.val - p2.val) < 0.00001f) {
+            outPos = p1.pos;
+            outColor = p1.color;
+            return;
+        }
+
+        float mu = (isolevel - p1.val) / (p2.val - p1.val);
+        outPos = p1.pos + mu * (p2.pos - p1.pos);
+        outColor = p1.color + mu * (p2.color - p1.color);
+    }
+
+    void sampleField(const Eigen::Vector3f& pos, const std::vector<std::shared_ptr<typename Octree<T>::NodeData>>& nodes, float& outVal, Eigen::Vector3f& outColor) {
+        float sumVal = 0.0f;
+        Eigen::Vector3f sumColor = Eigen::Vector3f::Zero();
+        float totalWeight = 0.0f;
+        
+        for (const auto& node : nodes) {
+            float r = node->size * _influenceRadius;
+            float distSq = (pos - node->position).squaredNorm();
+            
+            if (distSq < r * r) {
+                float dist = std::sqrt(distSq);
+                float x = dist / r;
+                float val = std::pow(1.0f - x*x, 3.0f);
+                
+                sumVal += val;
+                sumColor += node->color * val;
+                totalWeight += val;
+            }
+        }
+
+        outVal = sumVal;
+        if (totalWeight > 0.0001f) {
+            outColor = sumColor / totalWeight;
+        } else {
+            outColor = Eigen::Vector3f(1.0f, 0.0f, 1.0f);
+        }
+    }
+
+public:
+    MetaballMesher(float resolution = 0.5f, float isoLevel = 0.5f, float influenceMult = 2.5f) 
+        : _resolution(resolution), _isoLevel(isoLevel), _influenceRadius(influenceMult) {}
+
+    void polygonize(const std::vector<std::shared_ptr<typename Octree<T>::NodeData>>& nodes, 
+                   std::vector<Eigen::Vector3f>& outVerts, 
+                   std::vector<Eigen::Vector3f>& outColors,
+                   std::vector<int>& outIndices,
+                   int& startIndex) {
+        
+        if (nodes.empty()) return;
+
+        Eigen::Vector3f minBounds(1e9, 1e9, 1e9);
+        Eigen::Vector3f maxBounds(-1e9, -1e9, -1e9);
+        float maxNodeSize = 0;
+
+        for (const auto& node : nodes) {
+            minBounds = minBounds.cwiseMin(node->position);
+            maxBounds = maxBounds.cwiseMax(node->position);
+            if (node->size > maxNodeSize) maxNodeSize = node->size;
+        }
+
+        float padding = maxNodeSize * _influenceRadius;
+        minBounds -= Eigen::Vector3f(padding, padding, padding);
+        maxBounds += Eigen::Vector3f(padding, padding, padding);
+
+        float step = maxNodeSize * _resolution;
+        if (step <= 0.0001f) step = 0.1f;
+
+        int stepsX = static_cast<int>((maxBounds.x() - minBounds.x()) / step);
+        int stepsY = static_cast<int>((maxBounds.y() - minBounds.y()) / step);
+        int stepsZ = static_cast<int>((maxBounds.z() - minBounds.z()) / step);
+        
+        for (int x = 0; x < stepsX; ++x) {
+            for (int y = 0; y < stepsY; ++y) {
+                for (int z = 0; z < stepsZ; ++z) {
+                    
+                    Eigen::Vector3f basePos = minBounds + Eigen::Vector3f(x*step, y*step, z*step);
+                    GridCell cell;
+                    
+                    Eigen::Vector3f offsets[8] = {
+                        {0,0,0}, {step,0,0}, {step,0,step}, {0,0,step},
+                        {0,step,0}, {step,step,0}, {step,step,step}, {0,step,step}
+                    };
+
+                    int cubeIndex = 0;
+                    for (int i = 0; i < 8; ++i) {
+                        cell.p[i].pos = basePos + offsets[i];
+                        sampleField(cell.p[i].pos, nodes, cell.p[i].val, cell.p[i].color);
+                        if (cell.p[i].val < _isoLevel) cubeIndex |= (1 << i);
+                    }
+
+                    // Look up edges
+                    if (edgeTable[cubeIndex] == 0) continue;
+                    if (edgeTable[cubeIndex] == 255) continue; // Inside or Outside completely
+
+                    Eigen::Vector3f vertList[12];
+                    Eigen::Vector3f colorList[12];
+
+                    if (edgeTable[cubeIndex] & 1) vertexInterp(_isoLevel, cell.p[0], cell.p[1], vertList[0], colorList[0]);
+                    if (edgeTable[cubeIndex] & 2) vertexInterp(_isoLevel, cell.p[1], cell.p[2], vertList[1], colorList[1]);
+                    if (edgeTable[cubeIndex] & 4) vertexInterp(_isoLevel, cell.p[2], cell.p[3], vertList[2], colorList[2]);
+                    if (edgeTable[cubeIndex] & 8) vertexInterp(_isoLevel, cell.p[3], cell.p[0], vertList[3], colorList[3]);
+                    if (edgeTable[cubeIndex] & 16) vertexInterp(_isoLevel, cell.p[4], cell.p[5], vertList[4], colorList[4]);
+                    if (edgeTable[cubeIndex] & 32) vertexInterp(_isoLevel, cell.p[5], cell.p[6], vertList[5], colorList[5]);
+                    if (edgeTable[cubeIndex] & 64) vertexInterp(_isoLevel, cell.p[6], cell.p[7], vertList[6], colorList[6]);
+                    if (edgeTable[cubeIndex] & 128) vertexInterp(_isoLevel, cell.p[7], cell.p[4], vertList[7], colorList[7]);
+                    if (edgeTable[cubeIndex] & 256) vertexInterp(_isoLevel, cell.p[0], cell.p[4], vertList[8], colorList[8]);
+                    if (edgeTable[cubeIndex] & 512) vertexInterp(_isoLevel, cell.p[1], cell.p[5], vertList[9], colorList[9]);
+                    if (edgeTable[cubeIndex] & 1024) vertexInterp(_isoLevel, cell.p[2], cell.p[6], vertList[10], colorList[10]);
+                    if (edgeTable[cubeIndex] & 2048) vertexInterp(_isoLevel, cell.p[3], cell.p[7], vertList[11], colorList[11]);
+
+                    for (int i = 0; triTable[cubeIndex][i] != -1; i += 3) {
+                        outVerts.push_back(vertList[triTable[cubeIndex][i]]);
+                        outVerts.push_back(vertList[triTable[cubeIndex][i+1]]);
+                        outVerts.push_back(vertList[triTable[cubeIndex][i+2]]);
+                        
+                        outColors.push_back(colorList[triTable[cubeIndex][i]]);
+                        outColors.push_back(colorList[triTable[cubeIndex][i+1]]);
+                        outColors.push_back(colorList[triTable[cubeIndex][i+2]]);
+
+                        outIndices.push_back(startIndex++);
+                        outIndices.push_back(startIndex++);
+                        outIndices.push_back(startIndex++);
+                    }
+                }
+            }
+        }
+    }
+};
+
+template<typename T>
+class CachedGridMesh {
+private:
+    std::unique_ptr<Mesh> mesh_;
+    int id_;
+    
+    float _resolution = 0.5f;
+    float _isoLevel = 0.4f;
+
+public:
+    CachedGridMesh(int id = 0) : id_(id) {
+        mesh_ = std::make_unique<Mesh>(id_, std::vector<Vector3f>{}, std::vector<std::vector<int>>{}, std::vector<Color>{});
+    }
+
+    void setResolution(float res) { _resolution = res; }
+    void setIsoLevel(float iso) { _isoLevel = iso; }
+
+    void update(Octree<T>& grid, const Eigen::Vector3f& center = Eigen::Vector3f::Zero(), float radius = std::numeric_limits<float>::max()) {
+        std::vector<Vector3f> allVertices;
+        std::vector<std::vector<int>> allPolys;
+        std::vector<Color> allColors;
+        
+        auto nodes = grid.findInRadius(center, radius);
+        if (nodes.empty()) {
+            mesh_ = std::make_unique<Mesh>(id_, allVertices, allPolys, allColors);
+            return;
+        }
+        std::unordered_map<int, std::vector<std::shared_ptr<typename Octree<T>::NodeData>>> objectGroups;
+        
+        for (const auto& node : nodes) {
+            if (!node->active || !node->visible) continue;
+            objectGroups[node->objectId].push_back(node);
+        }
+        std::cout << "object map made" << std::endl;
+
+        MetaballMesher<T> mesher(_resolution, _isoLevel);
+        
+        int globalVertIndex = 0;
+        
+        for (auto& [objId, groupNodes] : objectGroups) {
+            std::vector<Eigen::Vector3f> objVerts;
+            std::vector<Eigen::Vector3f> objColors;
+            std::vector<int> objIndices;
+            int startIndex = globalVertIndex;
+            int localVertCounter = 0; 
+            
+            std::vector<Eigen::Vector3f> mVerts;
+            std::vector<Eigen::Vector3f> mColors;
+            std::vector<int> mIndices;
+            int mIdxStart = 0;
+
+            mesher.polygonize(groupNodes, mVerts, mColors, mIndices, mIdxStart);
+
+            for (size_t i = 0; i < mVerts.size(); ++i) {
+                allVertices.push_back(mVerts[i]);
+                allColors.push_back(mColors[i]);
+            }
+
+            for (size_t i = 0; i < mIndices.size(); i += 3) {
+                std::vector<int> tri = {
+                    mIndices[i] + globalVertIndex, 
+                    mIndices[i+1] + globalVertIndex, 
+                    mIndices[i+2] + globalVertIndex
+                };
+                allPolys.push_back(tri);
+            }
+
+            globalVertIndex += mVerts.size();
+            std::cout << "object done" << std::endl;
+        }
+
+        mesh_ = std::make_unique<Mesh>(id_, allVertices, allPolys, allColors);
+        mesh_->triangulate(); 
+    }
+
+    frame render(Camera cam, int height, int width, float near = 0.1f, float far = 1000.0f, frame::colormap format = frame::colormap::RGB) {
+        if (!mesh_) {
+            return frame(width, height, format);
+        }
+        return mesh_->renderFrame(cam, height, width, near, far, format);
+    }
+
+    Mesh* getMesh() {
+        return mesh_.get();
+    }
+    
+    size_t getVertexCount() const {
+        return mesh_ ? mesh_->vertices().size() : 0;
+    }
+};
+
+#endif

util/grid/mesh.hpp

@@ -0,0 +1,462 @@
+#ifndef MESH_HPP
+#define MESH_HPP
+
+#include <vector>
+#include <array>
+#include <map>
+#include <set>
+#include <memory>
+#include <algorithm>
+#include <cmath>
+#include <iostream>
+#include <chrono>
+#include "../../eigen/Eigen/Dense"
+#include "../../eigen/Eigen/Geometry"
+#include "./camera.hpp"
+#include "../output/frame.hpp"
+#include "../imgui/imgui.h"
+#include "../imgui/backends/imgui_impl_glfw.h"
+#include "../imgui/backends/imgui_impl_opengl3.h"
+#include <GLFW/glfw3.h>
+#include "../stb/stb_image.h"
+
+using Vector2f = Eigen::Vector2f;
+using Vector3f = Eigen::Vector3f;
+using Vector4f = Eigen::Vector4f;
+using Matrix4f = Eigen::Matrix4f;
+using Color = Eigen::Vector3f;
+
+struct Triangle2D {
+    Vector2f a, b, c;
+    Color color;
+    float depth;
+};
+
+class Mesh {
+private:
+    int id;
+    int _subId;
+    std::vector<Vector3f> _vertices;
+    std::vector<std::vector<int>> _polys;
+    std::vector<Color> _colors;
+    mutable std::vector<Eigen::Vector3i> _tris;
+    mutable std::vector<Vector3f> _triNormals; 
+    mutable bool _needs_triangulation = true;
+    mutable bool _needs_norm_calc = true;
+    
+    inline static float edgeFunction(const Vector2f& a, const Vector2f& b, const Vector2f& c) {
+        return (c.x() - a.x()) * (b.y() - a.y()) - (c.y() - a.y()) * (b.x() - a.x());
+    }
+
+public:
+    Mesh(int id, const std::vector<Vector3f>& verts, const std::vector<std::vector<int>>& polys, const std::vector<Color>& colors, int subId = 0)
+        : id(id), _subId(subId), _vertices(verts), _polys(polys), _colors(colors) {
+            _needs_triangulation = true;
+            _needs_norm_calc = true;
+    }
+
+    int getId() const { 
+        return id; 
+    }
+
+    int getSubId() const { 
+        return _subId; 
+    }
+
+    void setSubId(int s) { 
+        _subId = s; 
+    }
+
+    std::vector<Vector3f> vertices() {
+        return _vertices;
+    }
+
+    bool updateVertex(size_t index, const Vector3f& newPos) {
+        if (index < _vertices.size()) {
+            _vertices[index] = newPos;
+            _needs_norm_calc = true;
+            return true;
+        }
+        return false;
+    }
+
+    void translate(const Vector3f& offset) {
+        for(auto& v : _vertices) {
+            v += offset;
+        }
+        _needs_norm_calc = false;
+    }
+
+    void replace(const std::vector<Vector3f>& verts, const std::vector<std::vector<int>>& polys, const std::vector<Color>& colors) {
+        _vertices = verts;
+        _polys = polys;
+        _colors = colors;
+        _needs_triangulation = true;
+        _needs_norm_calc = true;
+    }
+    
+    bool vertices(std::vector<Vector3f> verts) {
+        if (verts.size() != _colors.size() && _colors.size() != 1) {
+            return false;
+        }
+        _vertices = verts;
+        _needs_norm_calc = true;
+        return true;
+    }
+
+    std::vector<std::vector<int>> polys() {
+        return _polys;
+    }
+
+    void triangulate() {
+        if (!_needs_triangulation) return;
+        std::vector<Eigen::Vector3i> newPols;
+        newPols.reserve(_polys.size() * 2); 
+        for (auto& pol : _polys) {
+            if (pol.size() > 3) {
+                auto v0 = pol[0];
+                for (size_t i = 1; i < pol.size() - 1; i++) {
+                    newPols.emplace_back(Eigen::Vector3i{v0, pol[i], pol[i+1]});
+                }
+            } else if (pol.size() == 3) {
+                Eigen::Vector3i tri{pol[0], pol[1], pol[2]};
+                newPols.emplace_back(tri);
+            }
+        }
+        _tris = newPols;
+        
+        _polys.clear();
+        _polys.shrink_to_fit();
+
+        _needs_triangulation = false; 
+        _needs_norm_calc = true;
+    }
+
+    void calculateNormals() {
+        if (!_needs_norm_calc) return;
+        
+        _triNormals.clear();
+        _triNormals.reserve(_tris.size());
+
+        for (const auto& tri : _tris) {
+            Vector3f v0 = _vertices[tri.x()];
+            Vector3f v1 = _vertices[tri.y()];
+            Vector3f v2 = _vertices[tri.z()];
+
+            Vector3f edge1 = v1 - v0;
+            Vector3f edge2 = v2 - v0;
+
+            // Normalized cross product gives the face normal
+            Vector3f normal = edge1.cross(edge2).normalized();
+            _triNormals.push_back(normal);
+        }
+        _needs_norm_calc = false;
+    }
+
+    std::vector<Color> colors() {
+        return _colors;
+    }
+
+    bool colors(std::vector<Color> colorlist) {
+        if (colorlist.size() == 1 || colorlist.size() == _vertices.size()) {
+            _colors = colorlist;
+            return true;
+        }
+        return false;
+    }
+
+    std::vector<Triangle2D> project_2d(Camera cam, int height, int width, float near, float far) {
+        triangulate();
+        calculateNormals();
+
+        std::vector<Triangle2D> renderList;
+        renderList.reserve(_tris.size());
+
+        Vector3f forward = cam.forward();
+        Vector3f right = cam.right();
+        Vector3f up = cam.up;
+
+        Matrix4f viewMatrixa = Matrix4f::Identity();
+        viewMatrixa.block<3,1>(0,0) = right;
+        viewMatrixa.block<3,1>(0,1) = up;
+        viewMatrixa.block<3,1>(0,2) = -forward; 
+        viewMatrixa.block<3,1>(0,3) = cam.origin;
+        
+        Matrix4f viewMatrix = viewMatrixa.inverse();
+
+        float aspect = float(width) / float(height);
+        float fovrad = cam.fovRad();
+        float tanHalfFov = std::tan(fovrad / 2.0f);
+        
+        Matrix4f projMatrix = Matrix4f::Zero();
+        projMatrix(0,0) = 1.0f / (aspect * tanHalfFov);
+        projMatrix(1,1) = 1.0f / tanHalfFov;
+        projMatrix(2,2) = -(far + near) / (far - near);
+        projMatrix(2,3) = -(2.0f * far * near) / (far - near);
+        projMatrix(3,2) = -1.0f;
+
+        int n = _vertices.size();
+        
+        std::vector<Vector2f> screenCoords(n);
+        std::vector<float> linearDepths(n);
+        std::vector<bool> validVerts(n, false);
+
+        Eigen::MatrixXf homogeneousVerts(n, 4);
+        for (int i = 0; i < n; ++i) {
+            homogeneousVerts.row(i).head<3>() = _vertices[i];
+            homogeneousVerts(i, 3) = 1.0f;
+        }
+
+        Eigen::MatrixXf viewVerts = homogeneousVerts * viewMatrix.transpose();
+        Eigen::MatrixXf clipVerts = viewVerts * projMatrix.transpose();
+
+        for (int i = 0; i < n; ++i) {
+            float w = clipVerts(i, 3);
+            
+            if (w <= near) {
+                validVerts[i] = false;
+                continue; 
+            }
+
+            float x_ndc = clipVerts(i, 0) / w;
+            float y_ndc = clipVerts(i, 1) / w;
+
+            screenCoords[i].x() = (x_ndc + 1.0f) * 0.5f * width;
+            screenCoords[i].y() = (1.0f - (y_ndc + 1.0f) * 0.5f) * height;
+            
+            linearDepths[i] = w; 
+            validVerts[i] = true;
+        }
+
+        Vector3f camPos = cam.origin;
+        size_t triCount = _tris.size();
+
+        for (size_t t = 0; t < triCount; ++t) {
+            const auto& triIdx = _tris[t];
+            
+            Vector3f p0 = _vertices[triIdx.x()];
+            Vector3f viewDir = (p0 - camPos).normalized();
+            
+            if (viewDir.dot(_triNormals[t]) >= 0.0f) {
+                continue;
+            }
+
+            int i0 = triIdx.x();
+            int i1 = triIdx.y();
+            int i2 = triIdx.z();
+
+            if (!validVerts[i0] || !validVerts[i1] || !validVerts[i2]) {
+                continue;
+            }
+
+            Triangle2D t2d;
+            t2d.a = screenCoords[i0];
+            t2d.b = screenCoords[i1];
+            t2d.c = screenCoords[i2];
+
+            t2d.depth = (linearDepths[i0] + linearDepths[i1] + linearDepths[i2]) / 3.0f;
+
+            // Handle Coloring
+            if (_colors.size() == n) {
+                t2d.color = (_colors[i0] + _colors[i1] + _colors[i2]) / 3.0f;
+            } else if (_colors.size() == 1) {
+                t2d.color = _colors[0];
+            } else {
+                t2d.color = {1.0f, 0.0f, 1.0f};
+            }
+
+            renderList.push_back(t2d);
+        }
+
+        std::sort(renderList.begin(), renderList.end(), [](const Triangle2D& a, const Triangle2D& b) {
+            return a.depth > b.depth;
+        });
+
+        return renderList;
+    }
+    
+    frame renderFrame(Camera cam, int height, int width, float near, float far, frame::colormap colorformat = frame::colormap::RGB) {
+        std::vector<Triangle2D> triangles = project_2d(cam, height, width, near, far);
+        return rasterizeTriangles(triangles, width, height, colorformat);
+    }
+
+    static frame rasterizeTriangles(const std::vector<Triangle2D>& triangles, int width, int height, frame::colormap colorformat) {
+        frame outFrame(width, height, colorformat);
+        std::vector<float> buffer(width * height * 3);
+        
+        for (const auto& tri : triangles) {
+            int minX = std::max(0, (int)std::floor(std::min({tri.a.x(), tri.b.x(), tri.c.x()})));
+            int maxX = std::min(width - 1, (int)std::ceil(std::max({tri.a.x(), tri.b.x(), tri.c.x()})));
+            int minY = std::max(0, (int)std::floor(std::min({tri.a.y(), tri.b.y(), tri.c.y()})));
+            int maxY = std::min(height - 1, (int)std::ceil(std::max({tri.a.y(), tri.b.y(), tri.c.y()})));
+
+            float area = edgeFunction(tri.a, tri.b, tri.c);
+
+            for (int y = minY; y <= maxY; ++y) {
+                for (int x = minX; x <= maxX; ++x) {
+                    Vector2f p(x + 0.5f, y + 0.5f);
+
+                    float w0 = edgeFunction(tri.b, tri.c, p);
+                    float w1 = edgeFunction(tri.c, tri.a, p);
+                    float w2 = edgeFunction(tri.a, tri.b, p);
+                    bool inside = false;
+                    
+                    if (area >= 0) {
+                        if (w0 >= 0 && w1 >= 0 && w2 >= 0) inside = true;
+                    } else {
+                        if (w0 <= 0 && w1 <= 0 && w2 <= 0) inside = true;
+                    }
+
+                    if (inside) {
+                        int index = (y * width + x) * 3;
+                        if (index >= 0 && index < buffer.size() - 2) {
+                            buffer[index    ] = tri.color.x();
+                            buffer[index + 1] = tri.color.y();
+                            buffer[index + 2] = tri.color.z();
+                        }
+                    }
+                }
+            }
+        }
+
+        outFrame.setData(buffer, colorformat);
+        return outFrame;
+    }
+
+    void printStats(std::ostream& os = std::cout) const {
+        os << "========================================\n";
+        os << "              Mesh STATS                \n";
+        os << "========================================\n";
+        os << "Structure:\n";
+        os << "  Total Vertices    : " << _vertices.size() << "\n";
+        os << "  Total Tris        : " << _tris.size() << "\n";
+        os << "  Tri Normals       : " << _triNormals.size() << "\n";
+        if (_needs_triangulation) os << "  Total Polys       : " << _polys.size() << "\n";
+        else os << "  Polys (Cleared)   : " << 0 << "\n"; 
+        os << "  colors            : " << _colors.size() << "\n";
+    }
+};
+
+class Scene {
+private:
+    std::vector<std::shared_ptr<Mesh>> _meshes;
+    std::string cachedStats;
+    std::chrono::steady_clock::time_point lastStatsUpdate;
+    bool statsNeedUpdate = true;
+    const std::chrono::seconds STATS_UPDATE_INTERVAL{60};
+public:
+    Scene() {}
+
+    void addMesh(std::shared_ptr<Mesh> mesh) {
+        _meshes.push_back(mesh);
+        updateStats();
+    }
+    
+    void addMeshes(const std::vector<std::shared_ptr<Mesh>>& meshes) {
+        _meshes.insert(_meshes.end(), meshes.begin(), meshes.end());
+        updateStats();
+    }
+
+    void clear() {
+        _meshes.clear();
+        updateStats();
+    }
+
+    frame render(Camera cam, int height, int width, float near, float far, frame::colormap colorformat = frame::colormap::RGB) {
+        std::vector<Triangle2D> allTriangles;
+
+        for (auto& mesh : _meshes) {
+            std::vector<Triangle2D> meshTris = mesh->project_2d(cam, height, width, near, far);
+            allTriangles.insert(allTriangles.end(), meshTris.begin(), meshTris.end());
+        }
+
+        std::sort(allTriangles.begin(), allTriangles.end(), [](const Triangle2D& a, const Triangle2D& b) {
+            return a.depth > b.depth;
+        });
+
+        return Mesh::rasterizeTriangles(allTriangles, width, height, colorformat);
+    }
+
+    void drawSceneWindow(const char* windowTitle, Camera& cam, float nearClip = 0.1f, float farClip = 1000.0f, bool showFps = true) {
+        ImGui::Begin(windowTitle);
+
+        ImVec2 canvas_p = ImGui::GetCursorScreenPos();
+        ImVec2 canvas_sz = ImGui::GetContentRegionAvail();
+
+        if (canvas_sz.x < 1.0f || canvas_sz.y < 1.0f) {
+            ImGui::End();
+            return;
+        }
+
+        ImDrawList* draw_list = ImGui::GetWindowDrawList();
+        
+        draw_list->PushClipRect(canvas_p, ImVec2(canvas_p.x + canvas_sz.x, canvas_p.y + canvas_sz.y), true);
+
+        draw_list->AddRectFilled(canvas_p, ImVec2(canvas_p.x + canvas_sz.x, canvas_p.y + canvas_sz.y), IM_COL32(20, 20, 20, 255));
+        
+        std::vector<Triangle2D> allTriangles;
+        for (auto& mesh : _meshes) {
+            std::vector<Triangle2D> meshTris = mesh->project_2d(cam, (int)canvas_sz.y, (int)canvas_sz.x, nearClip, farClip);
+            allTriangles.insert(allTriangles.end(), meshTris.begin(), meshTris.end());
+        }
+
+        std::sort(allTriangles.begin(), allTriangles.end(), [](const Triangle2D& a, const Triangle2D& b) {
+            return a.depth > b.depth;
+        });
+
+        // Draw triangles
+        for (const auto& tri : allTriangles) {
+            ImVec2 p1(canvas_p.x + tri.a.x(), canvas_p.y + tri.a.y());
+            ImVec2 p2(canvas_p.x + tri.b.x(), canvas_p.y + tri.b.y());
+            ImVec2 p3(canvas_p.x + tri.c.x(), canvas_p.y + tri.c.y());
+            ImU32 col = ImGui::ColorConvertFloat4ToU32(ImVec4(tri.color.x(), tri.color.y(), tri.color.z(), 1.0f));
+            draw_list->AddTriangleFilled(p1, p2, p3, col);
+        }
+
+        if (showFps) {
+            char fpsText[32];
+            snprintf(fpsText, sizeof(fpsText), "FPS: %.1f", ImGui::GetIO().Framerate);
+            
+            ImVec2 txtSz = ImGui::CalcTextSize(fpsText);
+            ImVec2 txtPos = ImVec2(canvas_p.x + canvas_sz.x - txtSz.x - 10.0f, canvas_p.y + 10.0f);
+            
+            draw_list->AddRectFilled(ImVec2(txtPos.x - 5.0f, txtPos.y - 2.0f), 
+                ImVec2(txtPos.x + txtSz.x + 5.0f, txtPos.y + txtSz.y + 2.0f), 
+                IM_COL32(0, 0, 0, 150), 4.0f
+            );
+            
+            draw_list->AddText(txtPos, IM_COL32(255, 255, 255, 255), fpsText);
+        }
+
+        draw_list->PopClipRect();
+
+        ImGui::End();
+    }
+
+    void printStats(std::ostream& os = std::cout) const {
+        os << "========================================\n";
+        os << "             Scene STATS                \n";
+        os << "========================================\n";
+        os << "Total Meshes: " << _meshes.size() << "\n";
+        for (auto m : _meshes) {
+            m->printStats(os);
+        }
+    }
+
+    void drawGridStats() {
+        auto now = std::chrono::steady_clock::now();
+        if ((now - lastStatsUpdate) > STATS_UPDATE_INTERVAL || statsNeedUpdate) {
+            std::stringstream meshStats;
+            printStats(meshStats);
+            cachedStats = meshStats.str();
+            lastStatsUpdate = std::chrono::steady_clock::now();
+            statsNeedUpdate = false;
+        }
+        ImGui::TextUnformatted(cachedStats.c_str());
+    }
+    void updateStats() {
+        statsNeedUpdate = true;
+    }
+};
+
+#endif

util/grid/sprite2.hpp

@@ -1,307 +0,0 @@
-#ifndef SPRITE2_HPP
-#define SPRITE2_HPP
-
-#include "grid2.hpp"
-#include "../output/frame.hpp"
-
-class SpriteMap2 : public Grid2 {
-private:
-    // id, sprite
-    std::unordered_map<size_t, frame> spritesComped;
-    std::unordered_map<size_t, int> Layers;
-    std::unordered_map<size_t, float> Orientations;
-
-public:
-    using Grid2::Grid2;
-    
-    size_t addSprite(const Vec2& pos, frame sprite, int layer = 0, float orientation = 0.0f) {
-        size_t id = addObject(pos, Vec4(0,0,0,0));
-        spritesComped[id] = sprite;
-        Layers[id] = layer;
-        Orientations[id] = orientation;
-        return id;
-    }
-
-    frame getSprite(size_t id) {
-        return spritesComped.at(id);
-    }
-
-    void setSprite(size_t id, const frame& sprite) {
-        spritesComped[id] = sprite;
-    }
-
-    int getLayer(size_t id) {
-        return Layers.at(id);
-    }
-
-    size_t setLayer(size_t id, int layer) {
-        Layers[id] = layer;
-        return id;
-    }
-
-    float getOrientation(size_t id) {
-        return Orientations.at(id);
-    }
-    
-    size_t setOrientation(size_t id, float orientation) {
-        Orientations[id] = orientation;
-        return id;
-    }
-
-    void getGridRegionAsBGR(const Vec2& minCorner, const Vec2& maxCorner, int& width, int& height, std::vector<uint8_t>& rgbData) const {
-        TIME_FUNCTION;
-        
-        // Calculate dimensions
-        width = static_cast<int>(maxCorner.x - minCorner.x);
-        height = static_cast<int>(maxCorner.y - minCorner.y);
-        
-        if (width <= 0 || height <= 0) {
-            width = height = 0;
-            rgbData.clear();
-            rgbData.shrink_to_fit();
-            return;
-        }
-        
-        // Initialize RGBA buffer for compositing
-        std::vector<Vec4> rgbaBuffer(width * height, Vec4(0.0f, 0.0f, 0.0f, 0.0f));
-        
-        // Group sprites by layer for proper rendering order
-        std::vector<std::pair<int, size_t>> layeredSprites;
-        for (const auto& [id, pos] : Positions) {
-            if (spritesComped.find(id) != spritesComped.end()) {
-                layeredSprites.emplace_back(Layers.at(id), id);
-            }
-        }
-        
-        // Sort by layer (lower layers first)
-        std::sort(layeredSprites.begin(), layeredSprites.end(), 
-                 [](const auto& a, const auto& b) { return a.first < b.first; });
-        
-        // Render each sprite in layer order
-        for (const auto& [layer, id] : layeredSprites) {
-            const Vec2& pos = Positions.at(id);
-            const frame& sprite = spritesComped.at(id);
-            float orientation = Orientations.at(id);
-            
-            // Decompress sprite if needed
-            frame decompressedSprite = sprite;
-            if (sprite.isCompressed()) {
-                decompressedSprite.decompress();
-            }
-            
-            const std::vector<uint8_t>& spriteData = decompressedSprite.getData();
-            size_t spriteWidth = decompressedSprite.getWidth();
-            size_t spriteHeight = decompressedSprite.getHeight();
-            
-            if (spriteData.empty() || spriteWidth == 0 || spriteHeight == 0) {
-                continue;
-            }
-            
-            // Calculate sprite bounds in world coordinates
-            float halfWidth = spriteWidth / 2.0f;
-            float halfHeight = spriteHeight / 2.0f;
-            
-            // Apply rotation if needed
-            // TODO: Implement proper rotation transformation
-            int pixelXm = static_cast<int>(pos.x - halfWidth - minCorner.x);
-            int pixelXM = static_cast<int>(pos.x + halfWidth - minCorner.x);
-            int pixelYm = static_cast<int>(pos.y - halfHeight - minCorner.y);
-            int pixelYM = static_cast<int>(pos.y + halfHeight - minCorner.y);
-            
-            // Clamp to output bounds
-            pixelXm = std::max(0, pixelXm);
-            pixelXM = std::min(width - 1, pixelXM);
-            pixelYm = std::max(0, pixelYm);
-            pixelYM = std::min(height - 1, pixelYM);
-            
-            // Skip if completely outside bounds
-            if (pixelXm >= width || pixelXM < 0 || pixelYm >= height || pixelYM < 0) {
-                continue;
-            }
-            
-            // Render sprite pixels
-            for (int py = pixelYm; py <= pixelYM; ++py) {
-                for (int px = pixelXm; px <= pixelXM; ++px) {
-                    // Calculate sprite-relative coordinates
-                    int spriteX = px - pixelXm;
-                    int spriteY = py - pixelYm;
-                    
-                    // Skip if outside sprite bounds
-                    if (spriteX < 0 || spriteX >= spriteWidth || spriteY < 0 || spriteY >= spriteHeight) {
-                        continue;
-                    }
-                    
-                    // Get sprite pixel color based on color format
-                    Vec4 spriteColor = getSpritePixelColor(spriteData, spriteX, spriteY, spriteWidth, spriteHeight, decompressedSprite.colorFormat);
-                    
-                    // Alpha blending
-                    int bufferIndex = py * width + px;
-                    Vec4& dest = rgbaBuffer[bufferIndex];
-                    
-                    float srcAlpha = spriteColor.a;
-                    if (srcAlpha > 0.0f) {
-                        float invSrcAlpha = 1.0f - srcAlpha;
-                        dest.r = spriteColor.r * srcAlpha + dest.r * invSrcAlpha;
-                        dest.g = spriteColor.g * srcAlpha + dest.g * invSrcAlpha;
-                        dest.b = spriteColor.b * srcAlpha + dest.b * invSrcAlpha;
-                        dest.a = srcAlpha + dest.a * invSrcAlpha;
-                    }
-                }
-            }
-        }
-        
-        // Also render regular colored objects (from base class)
-        for (const auto& [id, pos] : Positions) {
-            // Skip if this is a sprite (already rendered above)
-            if (spritesComped.find(id) != spritesComped.end()) {
-                continue;
-            }
-            
-            size_t size = Sizes.at(id);
-            
-            // Calculate pixel coordinates for colored objects
-            int pixelXm = static_cast<int>(pos.x - size/2 - minCorner.x);
-            int pixelXM = static_cast<int>(pos.x + size/2 - minCorner.x);
-            int pixelYm = static_cast<int>(pos.y - size/2 - minCorner.y);
-            int pixelYM = static_cast<int>(pos.y + size/2 - minCorner.y);
-            
-            pixelXm = std::max(0, pixelXm);
-            pixelXM = std::min(width - 1, pixelXM);
-            pixelYm = std::max(0, pixelYm);
-            pixelYM = std::min(height - 1, pixelYM);
-            
-            // Ensure within bounds
-            if (pixelXM >= minCorner.x && pixelXm < width && pixelYM >= minCorner.y && pixelYm < height) {
-                const Vec4& color = Colors.at(id);
-                float srcAlpha = color.a;
-                for (int py = pixelYm; py <= pixelYM; ++py) {
-                    for (int px = pixelXm; px <= pixelXM; ++px) {
-                        int index = py * width + px;
-                        Vec4& dest = rgbaBuffer[index];
-                        
-                        float invSrcAlpha = 1.0f - srcAlpha;
-                        dest.r = color.r * srcAlpha + dest.r * invSrcAlpha;
-                        dest.g = color.g * srcAlpha + dest.g * invSrcAlpha;
-                        dest.b = color.b * srcAlpha + dest.b * invSrcAlpha;
-                        dest.a = srcAlpha + dest.a * invSrcAlpha;
-                    }
-                }
-            }
-        }
-        
-        // Convert RGBA buffer to BGR output
-        rgbData.resize(rgbaBuffer.size() * 3);
-        for (size_t i = 0; i < rgbaBuffer.size(); ++i) {
-            const Vec4& color = rgbaBuffer[i];
-            size_t bgrIndex = i * 3;
-            
-            // Convert from [0,1] to [0,255] and store as BGR
-            rgbData[bgrIndex + 2] = static_cast<uint8_t>(color.r * 255);  // R -> third position
-            rgbData[bgrIndex + 1] = static_cast<uint8_t>(color.g * 255);  // G -> second position  
-            rgbData[bgrIndex + 0] = static_cast<uint8_t>(color.b * 255);  // B -> first position
-        }
-    }
-
-    size_t removeSprite(size_t id) {
-        spritesComped.erase(id);
-        Layers.erase(id);
-        Orientations.erase(id);
-        return removeID(id);
-    }
-
-    // Remove sprite by position
-    size_t removeSprite(const Vec2& pos) {
-        size_t id = getPositionVec(pos);
-        return removeSprite(id);
-    }
-
-    void clear() {
-        Grid2::clear();
-        spritesComped.clear();
-        Layers.clear();
-        Orientations.clear();
-        spritesComped.rehash(0);
-        Layers.rehash(0);
-        Orientations.rehash(0);
-    }
-
-    // Get all sprite IDs
-    std::vector<size_t> getAllSpriteIDs() {
-        return getAllIDs();
-    }
-
-    // Check if ID has a sprite
-    bool hasSprite(size_t id) const {
-        return spritesComped.find(id) != spritesComped.end();
-    }
-
-    // Get number of sprites
-    size_t getSpriteCount() const {
-        return spritesComped.size();
-    }
-
-private:
-    // Helper function to extract pixel color from sprite data based on color format
-    Vec4 getSpritePixelColor(const std::vector<uint8_t>& spriteData, 
-                            int x, int y, 
-                            size_t spriteWidth, size_t spriteHeight,
-                            frame::colormap format) const {
-        size_t pixelIndex = y * spriteWidth + x;
-        size_t channels = 3; // Default to RGB
-        
-        switch (format) {
-            case frame::colormap::RGB:
-                channels = 3;
-                if (pixelIndex * channels + 2 < spriteData.size()) {
-                    return Vec4(spriteData[pixelIndex * channels] / 255.0f,
-                               spriteData[pixelIndex * channels + 1] / 255.0f,
-                               spriteData[pixelIndex * channels + 2] / 255.0f,
-                               1.0f);
-                }
-                break;
-                
-            case frame::colormap::RGBA:
-                channels = 4;
-                if (pixelIndex * channels + 3 < spriteData.size()) {
-                    return Vec4(spriteData[pixelIndex * channels] / 255.0f,
-                               spriteData[pixelIndex * channels + 1] / 255.0f,
-                               spriteData[pixelIndex * channels + 2] / 255.0f,
-                               spriteData[pixelIndex * channels + 3] / 255.0f);
-                }
-                break;
-                
-            case frame::colormap::BGR:
-                channels = 3;
-                if (pixelIndex * channels + 2 < spriteData.size()) {
-                    return Vec4(spriteData[pixelIndex * channels + 2] / 255.0f,  // BGR -> RGB
-                               spriteData[pixelIndex * channels + 1] / 255.0f,
-                               spriteData[pixelIndex * channels] / 255.0f,
-                               1.0f);
-                }
-                break;
-                
-            case frame::colormap::BGRA:
-                channels = 4;
-                if (pixelIndex * channels + 3 < spriteData.size()) {
-                    return Vec4(spriteData[pixelIndex * channels + 2] / 255.0f,  // BGRA -> RGBA
-                               spriteData[pixelIndex * channels + 1] / 255.0f,
-                               spriteData[pixelIndex * channels] / 255.0f,
-                               spriteData[pixelIndex * channels + 3] / 255.0f);
-                }
-                break;
-                
-            case frame::colormap::B:
-                channels = 1;
-                if (pixelIndex < spriteData.size()) {
-                    float value = spriteData[pixelIndex] / 255.0f;
-                    return Vec4(value, value, value, 1.0f);
-                }
-                break;
-        }
-        
-        // Return transparent black if out of bounds
-        return Vec4(0.0f, 0.0f, 0.0f, 0.0f);
-    }
-};
-
-#endif

util/grid/svo.hpp

@@ -1,347 +0,0 @@
-#ifndef VOXELOCTREE_HPP
-#define VOXELOCTREE_HPP
-
-#include "../vectorlogic/vec3.hpp"
-#include "../compression/zstd.hpp"
-#include "../inttypes.hpp"
-#include "../utils.hpp"
-#include <memory>
-#include <vector>
-#include <iostream>
-#include <algorithm>
-#include <fstream>
-#include <array>
-#include <cstdint>
-#include <cmath>
-#include <bit>
-#include <stdio.h>
-
-
-class VoxelData {
-private:
-};
-
-static const uint32_t BitCount[] = {
-    0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
-    1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-    1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-    1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-    2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-    3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-    3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-    4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
-};
-
-constexpr float EPSILON = 0.0000000000000000000000001;
-static const size_t CompressionBlockSize = 64*1024*1024;
-
-class VoxelOctree {
-private:
-    static const size_t MaxScale = 23;
-    size_t _octSize;
-    std::vector<uint32_t> _octree;
-    VoxelData* _voxels;
-    Vec3f _center;
-
-    size_t buildOctree(ChunkedAllocator<uint32_t>& allocator, int x, int y, int z, int size, size_t descriptorIndex) {
-        _voxels->prepateDataAccess(x, y, z, size);
-
-        int halfSize = size >> 1;
-        const std::array<Vec3f, 8> childPositions = {
-            Vec3f{x + halfSize, y + halfSize, z + halfSize},
-            Vec3f{x,           y + halfSize, z + halfSize},
-            Vec3f{x + halfSize, y,           z + halfSize},
-            Vec3f{x,           y,           z + halfSize},
-            Vec3f{x + halfSize, y + halfSize, z},
-            Vec3f{x,           y + halfSize, z},
-            Vec3f{x + halfSize, y,           z},
-            Vec3f{x,           y,           z}
-        };
-        uint64_t childOffset = static_cast<uint64_t>(allocator.size()) - descriptorIndex;
-
-        int childCount = 0;
-        std::array<int, 8> childIndices{};
-        uint32_t childMask = 0;
-
-        for (int i = 0; i < 8; ++i) {
-            if (_voxels->cubeContainsVoxelsDestructive(childPositions[i].x, childPositions[i].y, childPositions[i].z, halfSize)) {
-                childMask |= 128 >> i;
-                childIndices[childCount++] = i;
-            }
-        }
-
-        bool hasLargeChildren = false;
-        uint32_t leafMask;
-        if (halfSize == 1) {
-            leafMask = 0;
-            for (int i = 0; i < childCount; ++i) {
-                int idx = childIndices[childCount - i - 1];
-                allocator.pushBack(_voxels->getVoxelDestructive(childPositions[idx].x, childPositions[idx].y, childPositions[idx].z));
-            }
-        } else {
-            leafMask = childMask;
-            for (int i = 0; i < childCount; ++i) allocator.pushBack(0);
-            std::array<uint64_t, 8> granChildOffsets{};
-            uint64_t delta = 0;
-            uint64_t insertionCount = allocator.insertionCount();
-
-            for (int i = 0; i < childCount; ++i) {
-                int idx = childIndices[childCount - i - 1];
-                granChildOffsets[i] = delta + buildOctree(allocator, childPositions[idx].x, childPositions[idx].y, childPositions[idx].z, halfSize, descriptorIndex + childOffset + i);
-                delta += allocator.insertionCount() - insertionCount;
-                insertionCount = allocator.insertionCount();
-                if (granChildOffsets[i] > 0x3FFF) hasLargeChildren = true;
-            }
-
-            for (int i = 0; i < childCount; ++i) {
-                uint64_t childIdx = descriptorIndex + childOffset + i;
-                uint64_t offset = granChildOffsets[i];
-
-                if (hasLargeChildren) {
-                    offset += childCount - i;
-                    allocator.insert(childIdx + 1, static_cast<uint32_t>(offset));
-                    allocator[childIdx] |= 0x20000;
-                    offset >>= 32;
-                }
-                allocator[childIdx] |= static_cast<uint32_t>(offset << 18);
-            }
-        }
-
-        allocator[descriptorIndex] = (childMask << 8) | leafMask;
-        if (hasLargeChildren) allocator[descriptorIndex] |= 0x10000;
-        return childOffset;
-    }
-public:
-    VoxelOctree(const std::string& path) : _voxels(nullptr) {
-        std::ifstream file = std::ifstream(path, std::ios::binary);
-        if (!file.isopen()) {
-            throw std::runtime_error(std::string("failed to open: ") + path);
-        }
-
-        float cd[3];
-        file.read(reinterpret_cast<char*>(cd), sizeof(float) * 3);
-        _center = Vec3f(cd);
-
-        uint64_t octreeSize;
-        file.read(reinterpret_cast<char*>(&octreeSize), sizeof(uint64_t));
-        _octSize = octreeSize;
-
-        _octree.resize(_octSize);
-
-        std::vector<uint8_t> compressionBuffer(zstd(static_cast<int>(CompressionBlockSize)));
-
-        std::unique_ptr<ZSTD_Stream, decltype(&ZSTD_freeStreamDecode)> stream(ZSTD_freeStreamDecode);
-        ZSTD_setStreamDecode(stream.get(), reinterpret_cast<char*>(_octree.data()), 0);
-
-        uint64_t compressedSize = 0;
-        const size_t elementSize = sizeof(uint32_t);
-        for (uint64_t offset = 0; offset < _octSize * elementSize; offset += CompressionBlockSize) {
-            uint64_t compsize;
-            file.read(reinterpret_cast<char*>(&compsize), sizeof(uint64_t));
-
-            if (compsize > compressionBuffer.size()) compressionBuffer.resize(compsize);
-            file.read(compressionBuffer.data(), static_cast<std::streamsize>(compsize));
-
-            int outsize = std::min(_octSize * elementSize - offset, CompressionBlockSize);
-            ZSTD_Decompress_continue(stream.get(), compressionBuffer.data(), reinterpret_cast<char*>(_octree.data()) + offset, outsize);
-
-            compressedSize += compsize + sizeof(uint64_t);
-        }
-    }
-
-    VoxelOctree(VoxelData* voxels) : _voxels(voxels) {
-        std::unique_ptr<ChunkedAllocator<uint32_t>> octreeAllocator = std::make_unique<ChunkedAllocator<uint32_t>>();
-
-        octreeAllocator->pushBack(0);
-        buildOctree(*octreeAllocator, 0, 0, 0, _voxels->sideLength(), 0);
-        (*octreeAllocator)[0] |= 1 << 18;
-
-        _octSize = octreeAllocator->size() + octreeAllocator-> insertionCount();
-        _octree = octreeAllocator->finalize();
-        _center = _voxels->getCenter();
-    }
-
-    void save(const char* path) {
-        std::ofstream file(path, std::iod::binary);
-        if (!file.is_open()) {
-            throw std::runtime_error(std::string("failed to write: ") + path);
-        }
-
-        float cd[3] = {_center.x,_center.y, _center.z};
-
-        file.write(reinterpret_cast<const char*>(cd), sizeof(float) * 3);
-
-        file.write(reinterpret_cast<const char*>(static_cast<uint64_t>(_octSize)), sizeof(uint64_t));
-        std::vector<uint8_t> compressionBuffer(ZSTD_compressBound(static_cast<int>(CompressionBlockSize)));
-        std::unique_ptr<ZSTD_stream_t, decltype(&ZSTD_freeStream)> stream(ZSTD_createStream(), ZSTD_freeStream);
-
-        ZSTD_resetStream(stream.get());
-
-        uint64_t compressedSize = 0;
-        const size_t elementSize = sizeof(uint32_t);
-        const char* src = reinterpret_cast<const char*>(_octree.data());
-
-        for (uint64_t offset = 0; offset < _octSize * elementSize; offset += CompressionBlockSize) {
-            int outSize = _octSize * elementSize - offset, CompressionBlockSize;
-            uint64_t compSize = ZSTD_Compress_continue(stream.get(), src+offset, compressionBuffer.data(), outSize);
-
-            file.write(reinterpret_cast<const char*>(&compSize), sizeof(uint64_t));
-            file.write(compressionBuffer.data(), static_cast<std::streamsize>(compSize));
-
-            compressedSize += compSize + sizeof(uint64_t);
-        }
-    }
-    
-    bool rayMarch(const Vec3f& origin, const Vec3f& dest, float rayScale, uint32_t& normal, float& t) {
-        struct StackEntry {
-            uint64_t offset;
-            float maxT;
-        };
-
-        std::array<StackEntry, MaxScale + 1> rayStack;
-
-        Vec3 invAbsD = -dest.abs().safeInverse();
-        uint8_t octantMask = dest.calculateOctantMask();
-        Vec3f bT = invAbsD * origin;
-        if (dest.x > 0) { bT.x = 3.0f * invAbsD.x - bT.x;}
-        if (dest.y > 0) { bT.y = 3.0f * invAbsD.y - bT.y;}
-        if (dest.z > 0) { bT.z = 3.0f * invAbsD.z - bT.z;}
-
-        float minT = (2.0f * invAbsD - bT).maxComp();
-        float maxT = (invAbsD - bT).minComp();
-        minT = std::max(minT, 0.0f);
-        uint32_t curr = 0;
-        uint64_t par = 0;
-
-        Vec3 pos(1.0f);
-        
-        int idx = 0;
-        Vec3 centerT = 1.5f * invAbsD - bT;
-        if (centerT.x > minT) { idx ^= 1; pos.x = 1.5f; }
-        if (centerT.y > minT) { idx ^= 2; pos.y = 1.5f; }
-        if (centerT.z > minT) { idx ^= 4; pos.z = 1.5f; }
-
-        int scale = MaxScale - 1;
-        float scaleExp2 = 0.5f;
-
-        while (scale < MaxScale) {
-            if (curr == 0) curr = _octree[par];
-
-            Vec3 cornerT = pos * invAbsD - bT;
-            float maxTC = cornerT.minComp();
-
-            int childShift = idx ^ octantMask;
-            uint32_t childMasks = curr << childShift;
-            if ((childMasks & 0x8000) && minT <= maxT) {
-                if (maxTC * rayScale >= scaleExp2) {
-                    t = maxTC;
-                    return true;
-                }
-
-                float maxTV = std::min(maxTC, maxT);
-                float half = scaleExp2 * 0.5f;
-                Vec3f centerT = Vec3(half) * invAbsD + cornerT;
-
-                if (minT <= maxTV) {
-                    uint64_t childOffset = curr >> 18;
-                    if (curr & 0x20000) childOffset = (childOffset << 32) | static_cast<uint64_t>(_octree[par+1]);
-                    if (!(childMasks & 0x80)) {
-                        uint32_t maskIndex = ((childMasks >> (8 + childShift)) << childShift) & 127;
-                        normal = _octree[childOffset + par + BitCount[maskIndex]];
-                        break;
-                    }
-                    rayStack[scale].offset = par;
-                    rayStack[scale].maxT = maxT;
-                    uint32_t siblingCount = BitCount[childMasks & 127];
-
-                    par += childOffset + siblingCount;
-                    if (curr & 0x10000) par += siblingCount;
-                    idx = 0;
-
-                    --scale;
-                    scaleExp2 = half;
-                    if (centerT.x > minT) {
-                        idx ^= 1;
-                        pos.x += scaleExp2;
-                    }
-                    if (centerT.y > minT) {
-                        idx ^= 1;
-                        pos.y += scaleExp2;
-                    }
-                    if (centerT.z > minT) {
-                        idx ^= 1;
-                        pos.z += scaleExp2;
-                    }
-
-                    maxT = maxTV;
-                    curr = 0;
-                    continue;
-                }
-            }
-
-            int stepMask = 0;
-            if (cornerT.x <= maxTC) {
-                stepMask ^= 1;
-                pos.x -= scaleExp2;
-            }
-            if (cornerT.y <= maxTC) {
-                stepMask ^= 1;
-                pos.y -= scaleExp2;
-            }
-            if (cornerT.z <= maxTC) {
-                stepMask ^= 1;
-                pos.z -= scaleExp2;
-            }
-
-            minT = maxTC;
-            idx ^= stepMask;
-
-            if ((idx & stepMask) != 0) {
-                uint32_t differingBits = 0;
-                if (stepMask & 1) {
-                    differingBits |= std::bit_cast<uint32_t>(pos.x) ^ std::bit_cast<uint32_t>(pos.x + scaleExp2);
-                }
-                if (stepMask & 2) {
-                    differingBits |= std::bit_cast<uint32_t>(pos.y) ^ std::bit_cast<uint32_t>(pos.y + scaleExp2);
-                }
-                if (stepMask & 4) {
-                    differingBits |= std::bit_cast<uint32_t>(pos.z) ^ std::bit_cast<uint32_t>(pos.z + scaleExp2);
-                }
-
-                scale = (differingBits >> 23) - 127;
-                scale = std::bit_cast<float>(static_cast<uint32_t>((scale - MaxScale + 127) << 23));
-
-                par = rayStack[scale].offset;
-                maxT = rayStack[scale].maxT;
-
-                int shX = std::bit_cast<uint32_t>(pos.x) >> scale;
-                int shY = std::bit_cast<uint32_t>(pos.y) >> scale;
-                int shZ = std::bit_cast<uint32_t>(pos.z) >> scale;
-
-                pos.x = std::bit_cast<float>(shX << scale);
-                pos.y = std::bit_cast<float>(shY << scale);
-                pos.z = std::bit_cast<float>(shZ << scale);
-                
-                idx = (shX & 1) | ((shY & 1) << 1) | ((shZ & 1) << 2);
-                curr = 0;
-            }
-        }
-        if (scale >=MaxScale) return false;
-        t = minT;
-        return true;
-    }
-
-    Vec3f center() const {
-        return _center;
-    }
-};
-
-#endif

util/jsonhelper.hpp

@@ -0,0 +1,93 @@
+#ifndef JSONHELPER_HPP
+#define JSONHELPER_HPP
+
+#include <string>
+#include <vector>
+#include <cctype>
+
+namespace JsonHelper {
+
+    // Helper to get string value between quotes
+    inline std::string parseString(const std::string& json, const std::string& key) {
+        size_t pos = json.find("\"" + key + "\"");
+        if (pos == std::string::npos) return "";
+        pos = json.find(":", pos);
+        if (pos == std::string::npos) return "";
+        size_t start = json.find("\"", pos);
+        if (start == std::string::npos) return "";
+        size_t end = json.find("\"", start + 1);
+        if (end == std::string::npos) return "";
+        return json.substr(start + 1, end - start - 1);
+    }
+
+    // Helper to get raw non-string value (int, float, bool)
+    inline std::string parseRaw(const std::string& json, const std::string& key) {
+        size_t pos = json.find("\"" + key + "\"");
+        if (pos == std::string::npos) return "";
+        pos = json.find(":", pos);
+        if (pos == std::string::npos) return "";
+        pos++; // skip ':'
+        
+        while (pos < json.length() && std::isspace(json[pos])) pos++;
+        size_t end = pos;
+        while (end < json.length() && json[end] != ',' && json[end] != '}' && json[end] != ']' && !std::isspace(json[end])) end++;
+        
+        return json.substr(pos, end - pos);
+    }
+
+    inline int parseInt(const std::string& json, const std::string& key, int defaultVal = 0) {
+        std::string raw = parseRaw(json, key);
+        if (raw.empty()) return defaultVal;
+        try { return std::stoi(raw); } catch(...) { return defaultVal; }
+    }
+
+    inline float parseFloat(const std::string& json, const std::string& key, float defaultVal = 0.0f) {
+        std::string raw = parseRaw(json, key);
+        if (raw.empty()) return defaultVal;
+        try { return std::stof(raw); } catch(...) { return defaultVal; }
+    }
+
+    inline bool parseBool(const std::string& json, const std::string& key, bool defaultVal = false) {
+        std::string raw = parseRaw(json, key);
+        if (raw.empty()) return defaultVal;
+        return raw == "true" || raw == "1";
+    }
+
+    // Helper to extract JSON objects out of a JSON array
+    inline std::vector<std::string> parseArray(const std::string& json, const std::string& key) {
+        std::vector<std::string> items;
+        size_t pos = json.find("\"" + key + "\"");
+        if (pos == std::string::npos) return items;
+        pos = json.find(":", pos);
+        if (pos == std::string::npos) return items;
+        pos = json.find("[", pos);
+        if (pos == std::string::npos) return items;
+        
+        int depth = 0;
+        size_t start = 0;
+        bool inString = false;
+        
+        for (size_t i = pos + 1; i < json.length(); ++i) {
+            if (json[i] == '"' && (i == 0 || json[i-1] != '\\')) {
+                inString = !inString;
+            }
+            if (!inString) {
+                if (json[i] == '{') {
+                    if (depth == 0) start = i;
+                    depth++;
+                } else if (json[i] == '}') {
+                    depth--;
+                    if (depth == 0) {
+                        items.push_back(json.substr(start, i - start + 1));
+                    }
+                } else if (json[i] == ']') {
+                    if (depth == 0) break;
+                }
+            }
+        }
+        return items;
+    }
+
+}
+
+#endif

util/mat2.hpp

@@ -1,166 +0,0 @@
-#ifndef MAT2_HPP
-#define MAT2_HPP
-
-#include "Vec2.hpp"
-#include <array>
-#include <cmath>
-
-class Mat2 {
-public:
-    union {
-        struct { float m00, m01, m10, m11; };
-        struct { float a, b, c, d; };
-        float data[4];
-        float m[2][2];
-    };
-    
-    // Constructors
-    Mat2() : m00(1), m01(0), m10(0), m11(1) {}
-    Mat2(float scalar) : m00(scalar), m01(scalar), m10(scalar), m11(scalar) {}
-    Mat2(float m00, float m01, float m10, float m11) : m00(m00), m01(m01), m10(m10), m11(m11) {}
-    
-    // Identity matrix
-    static Mat2 identity() { return Mat2(1, 0, 0, 1); }
-    
-    // Zero matrix
-    static Mat2 zero() { return Mat2(0, 0, 0, 0); }
-    
-    // Rotation matrix
-    static Mat2 rotation(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat2(cosA, -sinA, sinA, cosA);
-    }
-    
-    // Scaling matrix
-    static Mat2 scaling(const Vec2& scale) {
-        return Mat2(scale.x, 0, 0, scale.y);
-    }
-    
-    // Arithmetic operations
-    Mat2 operator+(const Mat2& other) const {
-        return Mat2(m00 + other.m00, m01 + other.m01,
-                   m10 + other.m10, m11 + other.m11);
-    }
-    
-    Mat2 operator-(const Mat2& other) const {
-        return Mat2(m00 - other.m00, m01 - other.m01,
-                   m10 - other.m10, m11 - other.m11);
-    }
-    
-    Mat2 operator*(const Mat2& other) const {
-        return Mat2(
-            m00 * other.m00 + m01 * other.m10,
-            m00 * other.m01 + m01 * other.m11,
-            m10 * other.m00 + m11 * other.m10,
-            m10 * other.m01 + m11 * other.m11
-        );
-    }
-    
-    Mat2 operator*(float scalar) const {
-        return Mat2(m00 * scalar, m01 * scalar,
-                   m10 * scalar, m11 * scalar);
-    }
-    
-    Mat2 operator/(float scalar) const {
-        return Mat2(m00 / scalar, m01 / scalar,
-                   m10 / scalar, m11 / scalar);
-    }
-    
-    Vec2 operator*(const Vec2& vec) const {
-        return Vec2(
-            m00 * vec.x + m01 * vec.y,
-            m10 * vec.x + m11 * vec.y
-        );
-    }
-    
-    Mat2& operator+=(const Mat2& other) {
-        m00 += other.m00; m01 += other.m01;
-        m10 += other.m10; m11 += other.m11;
-        return *this;
-    }
-    
-    Mat2& operator-=(const Mat2& other) {
-        m00 -= other.m00; m01 -= other.m01;
-        m10 -= other.m10; m11 -= other.m11;
-        return *this;
-    }
-    
-    Mat2& operator*=(const Mat2& other) {
-        *this = *this * other;
-        return *this;
-    }
-    
-    Mat2& operator*=(float scalar) {
-        m00 *= scalar; m01 *= scalar;
-        m10 *= scalar; m11 *= scalar;
-        return *this;
-    }
-    
-    Mat2& operator/=(float scalar) {
-        m00 /= scalar; m01 /= scalar;
-        m10 /= scalar; m11 /= scalar;
-        return *this;
-    }
-    
-    bool operator==(const Mat2& other) const {
-        return m00 == other.m00 && m01 == other.m01 &&
-               m10 == other.m10 && m11 == other.m11;
-    }
-    
-    bool operator!=(const Mat2& other) const {
-        return !(*this == other);
-    }
-    
-    // Matrix operations
-    float determinant() const {
-        return m00 * m11 - m01 * m10;
-    }
-    
-    Mat2 transposed() const {
-        return Mat2(m00, m10, m01, m11);
-    }
-    
-    Mat2 inverse() const {
-        float det = determinant();
-        if (std::abs(det) < 1e-10f) {
-            return Mat2(); // Return identity if not invertible
-        }
-        float invDet = 1.0f / det;
-        return Mat2( m11 * invDet, -m01 * invDet,
-                    -m10 * invDet,  m00 * invDet);
-    }
-    
-    // Access operators
-    float& operator()(int row, int col) {
-        return m[row][col];
-    }
-    
-    const float& operator()(int row, int col) const {
-        return m[row][col];
-    }
-    
-    float& operator[](int index) {
-        return data[index];
-    }
-    
-    const float& operator[](int index) const {
-        return data[index];
-    }
-    
-    std::string toString() const {
-        return "Mat2([" + std::to_string(m00) + ", " + std::to_string(m01) + "],\n" +
-               "      [" + std::to_string(m10) + ", " + std::to_string(m11) + "])";
-    }
-};
-
-inline std::ostream& operator<<(std::ostream& os, const Mat2& mat) {
-    os << mat.toString();
-    return os;
-}
-
-inline Mat2 operator*(float scalar, const Mat2& mat) {
-    return mat * scalar;
-}
-
-#endif

util/mat3.hpp

@@ -1,232 +0,0 @@
-#ifndef MAT3_HPP
-#define MAT3_HPP
-
-#include "Vec3.hpp"
-#include <array>
-#include <cmath>
-
-class Mat3 {
-public:
-    union {
-        struct {
-            float m00, m01, m02,
-                  m10, m11, m12,
-                  m20, m21, m22;
-        };
-        float data[9];
-        float m[3][3];
-    };
-    
-    // Constructors
-    Mat3() : m00(1), m01(0), m02(0),
-             m10(0), m11(1), m12(0),
-             m20(0), m21(0), m22(1) {}
-             
-    Mat3(float scalar) : m00(scalar), m01(scalar), m02(scalar),
-                         m10(scalar), m11(scalar), m12(scalar),
-                         m20(scalar), m21(scalar), m22(scalar) {}
-    
-    Mat3(float m00, float m01, float m02,
-         float m10, float m11, float m12,
-         float m20, float m21, float m22) : 
-         m00(m00), m01(m01), m02(m02),
-         m10(m10), m11(m11), m12(m12),
-         m20(m20), m21(m21), m22(m22) {}
-    
-    // Identity matrix
-    static Mat3 identity() {
-        return Mat3(1, 0, 0,
-                   0, 1, 0,
-                   0, 0, 1);
-    }
-    
-    // Zero matrix
-    static Mat3 zero() { return Mat3(0); }
-    
-    // Rotation matrices
-    static Mat3 rotationX(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat3(1, 0, 0,
-                   0, cosA, -sinA,
-                   0, sinA, cosA);
-    }
-    
-    static Mat3 rotationY(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat3(cosA, 0, sinA,
-                   0, 1, 0,
-                   -sinA, 0, cosA);
-    }
-    
-    static Mat3 rotationZ(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat3(cosA, -sinA, 0,
-                   sinA, cosA, 0,
-                   0, 0, 1);
-    }
-    
-    // Scaling matrix
-    static Mat3 scaling(const Vec3& scale) {
-        return Mat3(scale.x, 0, 0,
-                   0, scale.y, 0,
-                   0, 0, scale.z);
-    }
-    
-    // Arithmetic operations
-    Mat3 operator+(const Mat3& other) const {
-        return Mat3(m00 + other.m00, m01 + other.m01, m02 + other.m02,
-                   m10 + other.m10, m11 + other.m11, m12 + other.m12,
-                   m20 + other.m20, m21 + other.m21, m22 + other.m22);
-    }
-    
-    Mat3 operator-(const Mat3& other) const {
-        return Mat3(m00 - other.m00, m01 - other.m01, m02 - other.m02,
-                   m10 - other.m10, m11 - other.m11, m12 - other.m12,
-                   m20 - other.m20, m21 - other.m21, m22 - other.m22);
-    }
-    
-    Mat3 operator*(const Mat3& other) const {
-        return Mat3(
-            m00 * other.m00 + m01 * other.m10 + m02 * other.m20,
-            m00 * other.m01 + m01 * other.m11 + m02 * other.m21,
-            m00 * other.m02 + m01 * other.m12 + m02 * other.m22,
-            
-            m10 * other.m00 + m11 * other.m10 + m12 * other.m20,
-            m10 * other.m01 + m11 * other.m11 + m12 * other.m21,
-            m10 * other.m02 + m11 * other.m12 + m12 * other.m22,
-            
-            m20 * other.m00 + m21 * other.m10 + m22 * other.m20,
-            m20 * other.m01 + m21 * other.m11 + m22 * other.m21,
-            m20 * other.m02 + m21 * other.m12 + m22 * other.m22
-        );
-    }
-    
-    Mat3 operator*(float scalar) const {
-        return Mat3(m00 * scalar, m01 * scalar, m02 * scalar,
-                   m10 * scalar, m11 * scalar, m12 * scalar,
-                   m20 * scalar, m21 * scalar, m22 * scalar);
-    }
-    
-    Mat3 operator/(float scalar) const {
-        return Mat3(m00 / scalar, m01 / scalar, m02 / scalar,
-                   m10 / scalar, m11 / scalar, m12 / scalar,
-                   m20 / scalar, m21 / scalar, m22 / scalar);
-    }
-    
-    Vec3 operator*(const Vec3& vec) const {
-        return Vec3(
-            m00 * vec.x + m01 * vec.y + m02 * vec.z,
-            m10 * vec.x + m11 * vec.y + m12 * vec.z,
-            m20 * vec.x + m21 * vec.y + m22 * vec.z
-        );
-    }
-    
-    Mat3& operator+=(const Mat3& other) {
-        *this = *this + other;
-        return *this;
-    }
-    
-    Mat3& operator-=(const Mat3& other) {
-        *this = *this - other;
-        return *this;
-    }
-    
-    Mat3& operator*=(const Mat3& other) {
-        *this = *this * other;
-        return *this;
-    }
-    
-    Mat3& operator*=(float scalar) {
-        *this = *this * scalar;
-        return *this;
-    }
-    
-    Mat3& operator/=(float scalar) {
-        *this = *this / scalar;
-        return *this;
-    }
-    
-    bool operator==(const Mat3& other) const {
-        for (int i = 0; i < 9; ++i) {
-            if (data[i] != other.data[i]) return false;
-        }
-        return true;
-    }
-    
-    bool operator!=(const Mat3& other) const {
-        return !(*this == other);
-    }
-    
-    // Matrix operations
-    float determinant() const {
-        return m00 * (m11 * m22 - m12 * m21)
-             - m01 * (m10 * m22 - m12 * m20)
-             + m02 * (m10 * m21 - m11 * m20);
-    }
-    
-    Mat3 transposed() const {
-        return Mat3(m00, m10, m20,
-                   m01, m11, m21,
-                   m02, m12, m22);
-    }
-    
-    Mat3 inverse() const {
-        float det = determinant();
-        if (std::abs(det) < 1e-10f) {
-            return Mat3(); // Return identity if not invertible
-        }
-        
-        float invDet = 1.0f / det;
-        
-        return Mat3(
-            (m11 * m22 - m12 * m21) * invDet,
-            (m02 * m21 - m01 * m22) * invDet,
-            (m01 * m12 - m02 * m11) * invDet,
-            
-            (m12 * m20 - m10 * m22) * invDet,
-            (m00 * m22 - m02 * m20) * invDet,
-            (m02 * m10 - m00 * m12) * invDet,
-            
-            (m10 * m21 - m11 * m20) * invDet,
-            (m01 * m20 - m00 * m21) * invDet,
-            (m00 * m11 - m01 * m10) * invDet
-        );
-    }
-    
-    // Access operators
-    float& operator()(int row, int col) {
-        return m[row][col];
-    }
-    
-    const float& operator()(int row, int col) const {
-        return m[row][col];
-    }
-    
-    float& operator[](int index) {
-        return data[index];
-    }
-    
-    const float& operator[](int index) const {
-        return data[index];
-    }
-    
-    std::string toString() const {
-        return "Mat3([" + std::to_string(m00) + ", " + std::to_string(m01) + ", " + std::to_string(m02) + "],\n" +
-               "      [" + std::to_string(m10) + ", " + std::to_string(m11) + ", " + std::to_string(m12) + "],\n" +
-               "      [" + std::to_string(m20) + ", " + std::to_string(m21) + ", " + std::to_string(m22) + "])";
-    }
-};
-
-inline std::ostream& operator<<(std::ostream& os, const Mat3& mat) {
-    os << mat.toString();
-    return os;
-}
-
-inline Mat3 operator*(float scalar, const Mat3& mat) {
-    return mat * scalar;
-}
-
-#endif

util/mat4.hpp

@@ -1,310 +0,0 @@
-#ifndef MAT4_HPP
-#define MAT4_HPP
-
-#include "Vec3.hpp"
-#include "Vec4.hpp"
-#include <array>
-#include <cmath>
-
-class Mat4 {
-public:
-    union {
-        struct {
-            float m00, m01, m02, m03,
-                  m10, m11, m12, m13,
-                  m20, m21, m22, m23,
-                  m30, m31, m32, m33;
-        };
-        float data[16];
-        float m[4][4];
-    };
-    
-    // Constructors
-    Mat4() : m00(1), m01(0), m02(0), m03(0),
-             m10(0), m11(1), m12(0), m13(0),
-             m20(0), m21(0), m22(1), m23(0),
-             m30(0), m31(0), m32(0), m33(1) {}
-             
-    Mat4(float scalar) : m00(scalar), m01(scalar), m02(scalar), m03(scalar),
-                         m10(scalar), m11(scalar), m12(scalar), m13(scalar),
-                         m20(scalar), m21(scalar), m22(scalar), m23(scalar),
-                         m30(scalar), m31(scalar), m32(scalar), m33(scalar) {}
-    
-    Mat4(float m00, float m01, float m02, float m03,
-         float m10, float m11, float m12, float m13,
-         float m20, float m21, float m22, float m23,
-         float m30, float m31, float m32, float m33) : 
-         m00(m00), m01(m01), m02(m02), m03(m03),
-         m10(m10), m11(m11), m12(m12), m13(m13),
-         m20(m20), m21(m21), m22(m22), m23(m23),
-         m30(m30), m31(m31), m32(m32), m33(m33) {}
-    
-    // Identity matrix
-    static Mat4 identity() {
-        return Mat4(1, 0, 0, 0,
-                   0, 1, 0, 0,
-                   0, 0, 1, 0,
-                   0, 0, 0, 1);
-    }
-    
-    // Zero matrix
-    static Mat4 zero() { return Mat4(0); }
-    
-    // Translation matrix
-    static Mat4 translation(const Vec3& translation) {
-        return Mat4(1, 0, 0, translation.x,
-                   0, 1, 0, translation.y,
-                   0, 0, 1, translation.z,
-                   0, 0, 0, 1);
-    }
-    
-    // Rotation matrices
-    static Mat4 rotationX(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat4(1, 0, 0, 0,
-                   0, cosA, -sinA, 0,
-                   0, sinA, cosA, 0,
-                   0, 0, 0, 1);
-    }
-    
-    static Mat4 rotationY(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat4(cosA, 0, sinA, 0,
-                   0, 1, 0, 0,
-                   -sinA, 0, cosA, 0,
-                   0, 0, 0, 1);
-    }
-    
-    static Mat4 rotationZ(float angle) {
-        float cosA = std::cos(angle);
-        float sinA = std::sin(angle);
-        return Mat4(cosA, -sinA, 0, 0,
-                   sinA, cosA, 0, 0,
-                   0, 0, 1, 0,
-                   0, 0, 0, 1);
-    }
-    
-    // Scaling matrix
-    static Mat4 scaling(const Vec3& scale) {
-        return Mat4(scale.x, 0, 0, 0,
-                   0, scale.y, 0, 0,
-                   0, 0, scale.z, 0,
-                   0, 0, 0, 1);
-    }
-    
-    // Perspective projection matrix
-    static Mat4 perspective(float fov, float aspect, float near, float far) {
-        float tanHalfFov = std::tan(fov / 2.0f);
-        float range = near - far;
-        
-        return Mat4(1.0f / (aspect * tanHalfFov), 0, 0, 0,
-                   0, 1.0f / tanHalfFov, 0, 0,
-                   0, 0, (-near - far) / range, 2.0f * far * near / range,
-                   0, 0, 1, 0);
-    }
-    
-    // Orthographic projection matrix
-    static Mat4 orthographic(float left, float right, float bottom, float top, float near, float far) {
-        return Mat4(2.0f / (right - left), 0, 0, -(right + left) / (right - left),
-                   0, 2.0f / (top - bottom), 0, -(top + bottom) / (top - bottom),
-                   0, 0, -2.0f / (far - near), -(far + near) / (far - near),
-                   0, 0, 0, 1);
-    }
-    
-    // LookAt matrix (view matrix)
-    static Mat4 lookAt(const Vec3& eye, const Vec3& target, const Vec3& up) {
-        Vec3 z = (eye - target).normalized();
-        Vec3 x = up.cross(z).normalized();
-        Vec3 y = z.cross(x);
-        
-        return Mat4(x.x, x.y, x.z, -x.dot(eye),
-                   y.x, y.y, y.z, -y.dot(eye),
-                   z.x, z.y, z.z, -z.dot(eye),
-                   0, 0, 0, 1);
-    }
-    
-    // Arithmetic operations
-    Mat4 operator+(const Mat4& other) const {
-        Mat4 result;
-        for (int i = 0; i < 16; ++i) {
-            result.data[i] = data[i] + other.data[i];
-        }
-        return result;
-    }
-    
-    Mat4 operator-(const Mat4& other) const {
-        Mat4 result;
-        for (int i = 0; i < 16; ++i) {
-            result.data[i] = data[i] - other.data[i];
-        }
-        return result;
-    }
-    
-    Mat4 operator*(const Mat4& other) const {
-        Mat4 result;
-        for (int i = 0; i < 4; ++i) {
-            for (int j = 0; j < 4; ++j) {
-                result.m[i][j] = 0;
-                for (int k = 0; k < 4; ++k) {
-                    result.m[i][j] += m[i][k] * other.m[k][j];
-                }
-            }
-        }
-        return result;
-    }
-    
-    Mat4 operator*(float scalar) const {
-        Mat4 result;
-        for (int i = 0; i < 16; ++i) {
-            result.data[i] = data[i] * scalar;
-        }
-        return result;
-    }
-    
-    Mat4 operator/(float scalar) const {
-        Mat4 result;
-        for (int i = 0; i < 16; ++i) {
-            result.data[i] = data[i] / scalar;
-        }
-        return result;
-    }
-    
-    Vec4 operator*(const Vec4& vec) const {
-        return Vec4(
-            m00 * vec.x + m01 * vec.y + m02 * vec.z + m03 * vec.w,
-            m10 * vec.x + m11 * vec.y + m12 * vec.z + m13 * vec.w,
-            m20 * vec.x + m21 * vec.y + m22 * vec.z + m23 * vec.w,
-            m30 * vec.x + m31 * vec.y + m32 * vec.z + m33 * vec.w
-        );
-    }
-    
-    Vec3 transformPoint(const Vec3& point) const {
-        Vec4 result = *this * Vec4(point, 1.0f);
-        return result.xyz() / result.w;
-    }
-    
-    Vec3 transformDirection(const Vec3& direction) const {
-        Vec4 result = *this * Vec4(direction, 0.0f);
-        return result.xyz();
-    }
-    
-    Mat4& operator+=(const Mat4& other) {
-        *this = *this + other;
-        return *this;
-    }
-    
-    Mat4& operator-=(const Mat4& other) {
-        *this = *this - other;
-        return *this;
-    }
-    
-    Mat4& operator*=(const Mat4& other) {
-        *this = *this * other;
-        return *this;
-    }
-    
-    Mat4& operator*=(float scalar) {
-        *this = *this * scalar;
-        return *this;
-    }
-    
-    Mat4& operator/=(float scalar) {
-        *this = *this / scalar;
-        return *this;
-    }
-    
-    bool operator==(const Mat4& other) const {
-        for (int i = 0; i < 16; ++i) {
-            if (data[i] != other.data[i]) return false;
-        }
-        return true;
-    }
-    
-    bool operator!=(const Mat4& other) const {
-        return !(*this == other);
-    }
-    
-    // Matrix operations
-    float determinant() const {
-        // Using Laplace expansion for 4x4 determinant
-        float det = 0;
-        det += m00 * (m11 * (m22 * m33 - m23 * m32) - m12 * (m21 * m33 - m23 * m31) + m13 * (m21 * m32 - m22 * m31));
-        det -= m01 * (m10 * (m22 * m33 - m23 * m32) - m12 * (m20 * m33 - m23 * m30) + m13 * (m20 * m32 - m22 * m30));
-        det += m02 * (m10 * (m21 * m33 - m23 * m31) - m11 * (m20 * m33 - m23 * m30) + m13 * (m20 * m31 - m21 * m30));
-        det -= m03 * (m10 * (m21 * m32 - m22 * m31) - m11 * (m20 * m32 - m22 * m30) + m12 * (m20 * m31 - m21 * m30));
-        return det;
-    }
-    
-    Mat4 transposed() const {
-        return Mat4(m00, m10, m20, m30,
-                   m01, m11, m21, m31,
-                   m02, m12, m22, m32,
-                   m03, m13, m23, m33);
-    }
-    
-    Mat4 inverse() const {
-        // This is a simplified inverse implementation
-        // For production use, consider a more robust implementation
-        float det = determinant();
-        if (std::abs(det) < 1e-10f) {
-            return Mat4(); // Return identity if not invertible
-        }
-        
-        Mat4 result;
-        // Calculate inverse using adjugate matrix divided by determinant
-        // This is a placeholder - full implementation would be quite lengthy
-        float invDet = 1.0f / det;
-        
-        // Note: This is a simplified version - full implementation would calculate all 16 cofactors
-        result.m00 = (m11 * (m22 * m33 - m23 * m32) - m12 * (m21 * m33 - m23 * m31) + m13 * (m21 * m32 - m22 * m31)) * invDet;
-        // ... continue for all 16 elements
-        
-        return result.transposed() * invDet;
-    }
-    
-    // Access operators
-    float& operator()(int row, int col) {
-        return m[row][col];
-    }
-    
-    const float& operator()(int row, int col) const {
-        return m[row][col];
-    }
-    
-    float& operator[](int index) {
-        return data[index];
-    }
-    
-    const float& operator[](int index) const {
-        return data[index];
-    }
-    
-    std::string toString() const {
-        return "Mat4([" + std::to_string(m00) + ", " + std::to_string(m01) + ", " + std::to_string(m02) + ", " + std::to_string(m03) + "],\n" +
-               "      [" + std::to_string(m10) + ", " + std::to_string(m11) + ", " + std::to_string(m12) + ", " + std::to_string(m13) + "],\n" +
-               "      [" + std::to_string(m20) + ", " + std::to_string(m21) + ", " + std::to_string(m22) + ", " + std::to_string(m23) + "],\n" +
-               "      [" + std::to_string(m30) + ", " + std::to_string(m31) + ", " + std::to_string(m32) + ", " + std::to_string(m33) + "])";
-    }
-};
-
-inline std::ostream& operator<<(std::ostream& os, const Mat4& mat) {
-    os << mat.toString();
-    return os;
-}
-
-inline Mat4 operator*(float scalar, const Mat4& mat) {
-    return mat * scalar;
-}
-
-// Now you can implement the Ray3 transform method
-#include "ray3.hpp"
-
-inline Ray3 Ray3::transform(const Mat4& matrix) const {
-    Vec3 transformedOrigin = matrix.transformPoint(origin);
-    Vec3 transformedDirection = matrix.transformDirection(direction);
-    return Ray3(transformedOrigin, transformedDirection.normalized());
-}
-
-#endif

util/materials/colors.hpp

@@ -0,0 +1,83 @@
+#ifndef COLORS
+#define COLORS
+
+#include <cmath>
+#include <algorithm>
+#include <cstdint>
+
+namespace ColorUtils {
+    inline float cieX(float wavelength) {
+        float t1 = (wavelength - 442.0f) * ((wavelength < 442.0f) ? 0.0624f : 0.0374f);
+        float t2 = (wavelength - 599.8f) * ((wavelength < 599.8f) ? 0.0264f : 0.0323f);
+        float t3 = (wavelength - 501.1f) * ((wavelength < 501.1f) ? 0.0490f : 0.0382f);
+        
+        return 0.362f * expf(-0.5f * t1 * t1) + 1.056f * expf(-0.5f * t2 * t2) - 0.065f * expf(-0.5f * t3 * t3);
+    }
+    
+    inline float cieY(float wavelength) {
+        float t1 = (wavelength - 568.8f) * ((wavelength < 568.8f) ? 0.0213f : 0.0247f);
+        float t2 = (wavelength - 530.9f) * ((wavelength < 530.9f) ? 0.0613f : 0.0322f);
+        
+        return 0.821f * expf(-0.5f * t1 * t1) + 0.286f * expf(-0.5f * t2 * t2);
+    }
+    
+    inline float cieZ(float wavelength) {
+        float t1 = (wavelength - 437.0f) * ((wavelength < 437.0f) ? 0.0845f : 0.0278f);
+        float t2 = (wavelength - 459.0f) * ((wavelength < 459.0f) ? 0.0385f : 0.0725f);
+        
+        return 1.217f * expf(-0.5f * t1 * t1) + 0.681f * expf(-0.5f * t2 * t2);
+    }
+
+    inline float gammaCorrect(float c) {
+        return (c <= 0.0031308f) ? (12.92f * c) : (1.055f * powf(c, 1.0f / 2.4f) - 0.055f);
+    }
+
+    inline void wavelengthToRGB(float wavelength, float* rgbOut) {
+        float x = cieX(wavelength);
+        float y = cieY(wavelength);
+        float z = cieZ(wavelength);
+
+        float r = 3.2404542f * x - 1.5371385f * y - 0.4985314f * z;
+        float g = -0.9692660f * x + 1.8760108f * y + 0.0415560f * z;
+        float b = 0.0556434f * x - 0.2040259f * y + 1.0572252f * z;
+
+        rgbOut[0] = gammaCorrect(std::max(0.0f, std::min(1.0f, r)));
+        rgbOut[1] = gammaCorrect(std::max(0.0f, std::min(1.0f, g)));
+        rgbOut[2] = gammaCorrect(std::max(0.0f, std::min(1.0f, b)));
+    }
+
+    inline float rgbToHue(float r, float g, float b) {
+        float maxVal = std::max({r, g, b});
+        float minVal = std::min({r, g, b});
+        float delta = maxVal - minVal;
+
+        if (delta < 0.00001f) return 0.0f;
+
+        float hue = 0.0f;
+        if (maxVal == r) {
+            hue = (g - b) / delta + (g < b ? 6.0f : 0.0f);
+        } else if (maxVal == g) {
+            hue = (b - r) / delta + 2.0f;
+        } else {
+            hue = (r - g) / delta + 4.0f;
+        }
+        return hue * 60.0f;
+    }
+
+    inline float hueToWavelength(float hue) {
+        float wl = 0.0f;
+        if (hue >= 260.0f) {
+            wl = 380.0f + (hue - 260.0f) * 0.5f; 
+        } else if (hue < 120.0f) {
+                wl = 650.0f - (hue / 120.0f) * (650.0f - 510.0f);
+        } else if (hue < 240.0f) {
+            wl = 510.0f - ((hue - 120.0f) / 120.0f) * (510.0f - 440.0f);
+        } else {
+            wl = 440.0f - ((hue - 240.0f) / 120.0f) * (440.0f - 380.0f);
+        }
+        return wl;
+    }
+}
+
+
+#endif

util/materials/materials.hpp

@@ -0,0 +1,164 @@
+#ifndef G3_MATERIALS_HPP
+#define G3_MATERIALS_HPP
+
+#include "../../eigen/Eigen/Dense"
+#include "colors.hpp"
+
+struct Material {
+    float ior;
+    float dispersion;
+    float chromaticity;
+    float bandwidth;
+    float transmission;
+    float roughness;
+    float emittance;
+    bool light;
+    float density;
+    float speedOfSound;
+    float audioAbsorption;
+    Eigen::Vector3f rgb; //for the fast version.
+
+    // Constructor with sensible defaults
+    Material(float ior = 1.5f, float dispersion = 0.0f, float chromaticity = 550.0f, 
+             float bandwidth = 100.0f, float transmission = 0.0f, float roughness = 0.8f, 
+             float emittance = 0.0f, float density = 1000.0f, float speedOfSound = 343.0f,
+             float audioAbsorption = 0.1f, bool light = false)
+        : ior(ior), dispersion(dispersion), chromaticity(chromaticity), bandwidth(bandwidth),
+         transmission(transmission), roughness(roughness), emittance(emittance), 
+         density(density), speedOfSound(speedOfSound), audioAbsorption(audioAbsorption), light(light) {}
+
+          
+    static Material fromRGB(float r, float g, float b, float ior = 1.5f, float transmission = 0.0f, 
+                           float roughness = 0.8f, float emittance = 0.0f, bool isLight = false) {
+        float hue = ColorUtils::rgbToHue(r, g, b);
+        float wavelength = ColorUtils::hueToWavelength(hue);
+
+        float maxVal = std::max({r, g, b});
+        float minVal = std::min({r, g, b});
+        float delta = maxVal - minVal;
+        
+        float saturation = (maxVal > 0.0f) ? (delta / maxVal) : 0.0f;
+        
+        float bandwidth = 10.0f + (1.0f - saturation) * 290.0f;
+
+        Material outerial(ior, 0.02f, wavelength, bandwidth, transmission, roughness, emittance, 2.0f, 3000.0f, 0.1f, isLight);
+        outerial.rgb = Eigen::Vector3f(r, g, b);
+        return outerial;
+    }
+};
+
+namespace Materials {
+    // Metals
+    static const Material Gold(0.47f, 0.25f, 580.0f, 150.0f, 0.95f, 0.2f, 0.0f, 19300.0f, 3240.0f, 0.01f, false);
+    static const Material Silver(0.18f, 0.35f, 450.0f, 200.0f, 0.98f, 0.15f, 0.0f, 10500.0f, 3650.0f, 0.008f, false);
+    static const Material Copper(0.64f, 0.22f, 620.0f, 100.0f, 0.90f, 0.3f, 0.0f, 8960.0f, 4760.0f, 0.012f, false);
+    static const Material Iron(2.91f, 0.15f, 500.0f, 180.0f, 0.65f, 0.4f, 0.0f, 7870.0f, 5130.0f, 0.015f, false);
+    static const Material Aluminum(1.44f, 0.20f, 500.0f, 200.0f, 0.92f, 0.25f, 0.0f, 2700.0f, 6320.0f, 0.009f, false);
+    static const Material Platinum(2.06f, 0.18f, 500.0f, 180.0f, 0.90f, 0.2f, 0.0f, 21450.0f, 3960.0f, 0.01f, false);
+    static const Material Bronze(1.15f, 0.12f, 590.0f, 120.0f, 0.85f, 0.35f, 0.0f, 8700.0f, 3580.0f, 0.02f, false);
+    static const Material Brass(0.85f, 0.15f, 570.0f, 130.0f, 0.88f, 0.3f, 0.0f, 8520.0f, 4700.0f, 0.018f, false);
+
+    // Glass
+    static const Material Glass(1.52f, 0.008f, 550.0f, 80.0f, 0.92f, 0.05f, 0.0f, 2500.0f, 5300.0f, 0.05f, false);
+    static const Material FlintGlass(1.62f, 0.028f, 550.0f, 100.0f, 0.90f, 0.05f, 0.0f, 3600.0f, 5100.0f, 0.06f, false);
+    static const Material Borosilicate(1.47f, 0.005f, 550.0f, 70.0f, 0.95f, 0.04f, 0.0f, 2230.0f, 5600.0f, 0.04f, false);
+    static const Material FusedSilica(1.46f, 0.004f, 550.0f, 60.0f, 0.98f, 0.02f, 0.0f, 2200.0f, 5968.0f, 0.03f, false);
+    static const Material LeadCrystal(1.57f, 0.025f, 550.0f, 90.0f, 0.93f, 0.03f, 0.0f, 3800.0f, 4200.0f, 0.07f, false);
+    static const Material Obsidian(1.48f, 0.010f, 500.0f, 150.0f, 0.30f, 0.4f, 0.0f, 2600.0f, 4800.0f, 0.15f, false);
+    static const Material StainedGlassRed(1.52f, 0.008f, 650.0f, 50.0f, 0.60f, 0.08f, 0.0f, 2550.0f, 5200.0f, 0.08f, false);
+    static const Material StainedGlassBlue(1.52f, 0.008f, 470.0f, 50.0f, 0.65f, 0.08f, 0.0f, 2550.0f, 5200.0f, 0.08f, false);
+    static const Material StainedGlassGreen(1.52f, 0.008f, 530.0f, 50.0f, 0.60f, 0.08f, 0.0f, 2550.0f, 5200.0f, 0.08f, false);
+    static const Material StainedGlassYellow(1.52f, 0.008f, 580.0f, 50.0f, 0.70f, 0.08f, 0.0f, 2550.0f, 5200.0f, 0.08f, false);
+    static const Material FrostedGlass(1.52f, 0.008f, 550.0f, 80.0f, 0.85f, 0.7f, 0.0f, 2500.0f, 5300.0f, 0.25f, false);
+    static const Material TemperedGlass(1.52f, 0.008f, 550.0f, 80.0f, 0.91f, 0.06f, 0.0f, 2500.0f, 5400.0f, 0.06f, false);
+
+    // Water
+    static const Material FreshWater(1.333f, 0.018f, 475.0f, 200.0f, 0.99f, 0.1f, 0.0f, 1000.0f, 1480.0f, 0.002f, false);
+    static const Material SaltWater(1.339f, 0.020f, 475.0f, 250.0f, 0.85f, 0.15f, 0.0f, 1025.0f, 1530.0f, 0.003f, false);
+    static const Material BrackishWater(1.336f, 0.019f, 480.0f, 220.0f, 0.70f, 0.2f, 0.0f, 1010.0f, 1500.0f, 0.005f, false);
+    static const Material DistilledWater(1.333f, 0.017f, 475.0f, 180.0f, 0.995f, 0.05f, 0.0f, 1000.0f, 1480.0f, 0.001f, false);
+    static const Material MurkyWater(1.340f, 0.022f, 550.0f, 300.0f, 0.30f, 0.4f, 0.0f, 1030.0f, 1450.0f, 0.05f, false);
+
+    // Gems
+    static const Material Diamond(2.42f, 0.044f, 550.0f, 50.0f, 0.99f, 0.01f, 0.0f, 3520.0f, 12000.0f, 0.005f, false);
+    static const Material Emerald(1.58f, 0.014f, 530.0f, 40.0f, 0.85f, 0.1f, 0.0f, 2750.0f, 8500.0f, 0.02f, false);
+    static const Material Ruby(1.77f, 0.018f, 690.0f, 30.0f, 0.80f, 0.15f, 0.0f, 4000.0f, 8800.0f, 0.015f, false);
+    static const Material Sapphire(1.77f, 0.018f, 460.0f, 40.0f, 0.85f, 0.12f, 0.0f, 3980.0f, 8700.0f, 0.015f, false);
+    static const Material Amethyst(1.54f, 0.013f, 420.0f, 60.0f, 0.75f, 0.2f, 0.0f, 2650.0f, 7200.0f, 0.025f, false);
+    static const Material Topaz(1.63f, 0.014f, 590.0f, 50.0f, 0.88f, 0.15f, 0.0f, 3560.0f, 8000.0f, 0.018f, false);
+    static const Material Opal(1.45f, 0.010f, 550.0f, 200.0f, 0.70f, 0.3f, 0.0f, 2100.0f, 4500.0f, 0.03f, false);
+
+    // Natural Materials
+    static const Material PlantLeaf(1.45f, 0.05f, 550.0f, 100.0f, 0.15f, 0.7f, 0.0f, 800.0f, 350.0f, 0.4f, false);
+    static const Material Wood(1.50f, 0.10f, 650.0f, 150.0f, 0.10f, 0.9f, 0.0f, 700.0f, 3300.0f, 0.35f, false);
+    static const Material Soil(1.55f, 0.08f, 600.0f, 200.0f, 0.05f, 0.95f, 0.0f, 1600.0f, 300.0f, 0.6f, false);
+    static const Material Snow(1.31f, 0.015f, 450.0f, 100.0f, 0.98f, 0.6f, 0.0f, 250.0f, 320.0f, 0.5f, false);
+    static const Material Ice(1.31f, 0.016f, 475.0f, 120.0f, 0.90f, 0.3f, 0.0f, 917.0f, 3980.0f, 0.08f, false);
+    static const Material Sand(1.54f, 0.06f, 580.0f, 180.0f, 0.20f, 0.85f, 0.0f, 1600.0f, 200.0f, 0.7f, false);
+    static const Material Rock(1.55f, 0.07f, 550.0f, 200.0f, 0.08f, 0.8f, 0.0f, 2750.0f, 5500.0f, 0.2f, false);
+    static const Material Marble(1.50f, 0.005f, 550.0f, 150.0f, 0.40f, 0.4f, 0.0f, 2710.0f, 6100.0f, 0.15f, false);
+
+    // Stars and Lights
+    static const Material Sun(1.0f, 0.0f, 580.0f, 300.0f, 1.0f, 0.0f, 1.0f, 1408.0f, 0.0f, 0.0f, true);
+    static const Material RedStar(1.0f, 0.0f, 700.0f, 200.0f, 1.0f, 0.0f, 0.8f, 0.1f, 0.0f, 0.0f, true);
+    static const Material YellowStar(1.0f, 0.0f, 580.0f, 250.0f, 1.0f, 0.0f, 0.9f, 0.2f, 0.0f, 0.0f, true);
+    static const Material BlueStar(1.0f, 0.0f, 450.0f, 150.0f, 1.0f, 0.0f, 1.2f, 0.3f, 0.0f, 0.0f, true);
+    static const Material BrownStar(1.0f, 0.0f, 1000.0f, 400.0f, 1.0f, 0.0f, 0.3f, 0.05f, 0.0f, 0.0f, true);
+    static const Material WhiteStar(1.0f, 0.0f, 550.0f, 200.0f, 1.0f, 0.0f, 1.1f, 0.4f, 0.0f, 0.0f, true);
+    static const Material Moon(1.0f, 0.0f, 580.0f, 150.0f, 1.0f, 0.0f, 0.015f, 3340.0f, 0.0f, 0.0f, true);
+    static const Material LEDWhite(1.0f, 0.0f, 550.0f, 100.0f, 1.0f, 0.0f, 0.7f, 2000.0f, 0.0f, 0.0f, true);
+    static const Material LEDWarm(1.0f, 0.0f, 600.0f, 80.0f, 1.0f, 0.0f, 0.6f, 2000.0f, 0.0f, 0.0f, true);
+    static const Material NeonRed(1.0f, 0.0f, 640.0f, 10.0f, 1.0f, 0.0f, 0.5f, 0.9f, 0.0f, 0.0f, true);
+    static const Material NeonBlue(1.0f, 0.0f, 480.0f, 15.0f, 1.0f, 0.0f, 0.5f, 0.9f, 0.0f, 0.0f, true);
+
+    // Flames
+    static const Material CandleFlame(1.0002f, 0.002f, 650.0f, 100.0f, 0.7f, 0.9f, 0.8f, 0.2f, 343.0f, 0.8f, true);
+    static const Material WoodFire(1.0003f, 0.003f, 620.0f, 150.0f, 0.6f, 0.95f, 1.2f, 0.3f, 350.0f, 0.7f, true);
+    static const Material GasFlame(1.0002f, 0.001f, 580.0f, 80.0f, 0.8f, 0.8f, 1.0f, 0.25f, 345.0f, 0.75f, true);
+    static const Material PropaneFlame(1.0002f, 0.0015f, 590.0f, 120.0f, 0.75f, 0.85f, 1.1f, 0.28f, 348.0f, 0.72f, true);
+    static const Material AlcoholFlame(1.0002f, 0.002f, 610.0f, 90.0f, 0.85f, 0.7f, 0.9f, 0.22f, 340.0f, 0.78f, true);
+    static const Material Plasma(1.0001f, 0.005f, 450.0f, 200.0f, 0.9f, 0.5f, 2.0f, 0.001f, 1000.0f, 0.3f, true);
+    
+    // Organic materials
+    static const Material Skin(1.38f, 0.03f, 580.0f, 120.0f, 0.25f, 0.6f, 0.0f, 1100.0f, 1540.0f, 0.25f, false);
+    static const Material Hair(1.55f, 0.04f, 600.0f, 100.0f, 0.10f, 0.8f, 0.0f, 1300.0f, 100.0f, 0.6f, false);
+    static const Material Cotton(1.52f, 0.06f, 580.0f, 150.0f, 0.30f, 0.9f, 0.0f, 1520.0f, 200.0f, 0.55f, false);
+    static const Material Silk(1.54f, 0.05f, 570.0f, 130.0f, 0.40f, 0.7f, 0.0f, 1320.0f, 150.0f, 0.45f, false);
+    static const Material Leather(1.50f, 0.08f, 630.0f, 140.0f, 0.15f, 0.85f, 0.0f, 860.0f, 400.0f, 0.5f, false);
+    
+    // Plastics and Polymers
+    static const Material Acrylic(1.49f, 0.008f, 550.0f, 90.0f, 0.92f, 0.1f, 0.0f, 1180.0f, 2670.0f, 0.12f, false);
+    static const Material Polycarbonate(1.58f, 0.010f, 550.0f, 95.0f, 0.88f, 0.15f, 0.0f, 1200.0f, 2270.0f, 0.15f, false);
+    static const Material PVC(1.54f, 0.012f, 550.0f, 120.0f, 0.70f, 0.3f, 0.0f, 1380.0f, 2380.0f, 0.18f, false);
+    static const Material Rubber(1.52f, 0.020f, 600.0f, 200.0f, 0.10f, 0.9f, 0.0f, 1100.0f, 1500.0f, 0.4f, false);
+    
+    // Atmosphere Layers
+    static const Material Troposphere(1.00029f, 0.00015f, 475.0f, 350.0f, 0.95f, 0.3f, 0.0f, 1.225f, 343.0f, 0.01f, false);
+    static const Material Tropopause(1.00027f, 0.00012f, 470.0f, 320.0f, 0.97f, 0.2f, 0.0f, 0.66f, 295.0f, 0.008f, false);
+    static const Material Stratosphere(1.00025f, 0.00010f, 450.0f, 300.0f, 0.92f, 0.1f, 0.0f, 0.12f, 300.0f, 0.006f, false);
+    static const Material OzoneLayer(1.00026f, 0.00011f, 300.0f, 200.0f, 0.85f, 0.05f, 0.0f, 0.08f, 310.0f, 0.01f, false);
+    static const Material Stratopause(1.00022f, 0.00009f, 460.0f, 280.0f, 0.96f, 0.08f, 0.0f, 0.04f, 315.0f, 0.005f, false);
+    static const Material Mesosphere(1.00018f, 0.00008f, 490.0f, 250.0f, 0.88f, 0.15f, 0.0f, 0.008f, 280.0f, 0.004f, false);
+    static const Material Mesopause(1.00015f, 0.00007f, 500.0f, 230.0f, 0.94f, 0.12f, 0.0f, 0.005f, 275.0f, 0.003f, false);
+    static const Material Thermosphere(1.00010f, 0.00006f, 520.0f, 200.0f, 0.82f, 0.05f, 0.02f, 0.0002f, 500.0f, 0.001f, false);
+    static const Material Ionosphere(1.00008f, 0.00020f, 430.0f, 400.0f, 0.75f, 0.08f, 0.05f, 0.0001f, 1000.0f, 0.002f, false);
+    static const Material Exosphere(1.00001f, 0.00005f, 550.0f, 150.0f, 0.90f, 0.02f, 0.0f, 0.000001f, 0.0f, 0.0f, false);
+    static const Material KarmanLine(1.000005f, 0.00004f, 560.0f, 120.0f, 0.98f, 0.01f, 0.0f, 0.0000005f, 0.0f, 0.0f, false);
+    
+    // Atmospheric Conditions
+    static const Material ClearSky(1.00028f, 0.00013f, 475.0f, 320.0f, 0.97f, 0.1f, 0.0f, 1.2f, 343.0f, 0.02f, false);
+    static const Material HazySky(1.00030f, 0.00018f, 550.0f, 400.0f, 0.85f, 0.5f, 0.0f, 1.3f, 343.0f, 0.1f, false);
+    static const Material FoggyAir(1.00032f, 0.00025f, 580.0f, 500.0f, 0.60f, 0.9f, 0.0f, 1.4f, 343.0f, 0.3f, false);
+    static const Material RainyAir(1.00031f, 0.00022f, 500.0f, 450.0f, 0.70f, 0.7f, 0.0f, 1.35f, 343.0f, 0.15f, false);
+    static const Material MartianAtmosphere(1.00015f, 0.00030f, 650.0f, 200.0f, 0.80f, 0.6f, 0.0f, 0.02f, 240.0f, 0.08f, false);
+    static const Material VenusianAtmosphere(1.00050f, 0.00040f, 580.0f, 600.0f, 0.30f, 0.8f, 0.1f, 67.0f, 400.0f, 0.4f, false);
+    static const Material TitanAtmosphere(1.00040f, 0.00035f, 620.0f, 400.0f, 0.40f, 0.7f, 0.0f, 5.3f, 200.0f, 0.25f, false);
+    static const Material AuroraBorealis(1.00012f, 0.00050f, 557.7f, 50.0f, 0.90f, 0.3f, 0.3f, 0.001f, 0.0f, 0.0f, true);
+    static const Material AuroraRed(1.00012f, 0.00050f, 630.0f, 40.0f, 0.90f, 0.3f, 0.2f, 0.001f, 0.0f, 0.0f, true);
+    static const Material AuroraBlue(1.00012f, 0.00050f, 428.0f, 60.0f, 0.90f, 0.3f, 0.25f, 0.001f, 0.0f, 0.0f, true);
+    static const Material SeaLevelAir(1.00029f, 0.00015f, 550.0f, 300.0f, 0.95f, 0.1f, 0.0f, 1.225f, 343.0f, 0.01f, false);
+    static const Material MountainAir(1.00025f, 0.00012f, 500.0f, 280.0f, 0.97f, 0.05f, 0.0f, 0.96f, 330.0f, 0.008f, false);
+    static const Material HighAltitudeAir(1.00020f, 0.00010f, 480.0f, 250.0f, 0.98f, 0.03f, 0.0f, 0.74f, 320.0f, 0.006f, false);
+}
+
+#endif

util/noise/noisegui.cpp

@@ -1,403 +0,0 @@
-// noisegui.cpp
-#include "pnoise.hpp"
-#include "../bmpwriter.hpp"
-#include <imgui.h>
-#include <imgui_impl_glfw.h>
-#include <imgui_impl_opengl3.h>
-#include <GLFW/glfw3.h>
-#include <iostream>
-#include <vector>
-#include <string>
-#include <cmath>
-#include <algorithm>
-#include <memory>
-
-// Convert noise value to grayscale color
-Vec3 noiseToColor(double noiseValue) {
-    float value = static_cast<float>(noiseValue);
-    return Vec3(value, value, value);
-}
-
-// Convert noise value to color using a blue-to-red colormap
-Vec3 noiseToHeatmap(double noiseValue) {
-    float value = static_cast<float>(noiseValue);
-    
-    if (value < 0.25f) {
-        float t = value / 0.25f;
-        return Vec3(0.0f, t, 1.0f);
-    } else if (value < 0.5f) {
-        float t = (value - 0.25f) / 0.25f;
-        return Vec3(0.0f, 1.0f, 1.0f - t);
-    } else if (value < 0.75f) {
-        float t = (value - 0.5f) / 0.25f;
-        return Vec3(t, 1.0f, 0.0f);
-    } else {
-        float t = (value - 0.75f) / 0.25f;
-        return Vec3(1.0f, 1.0f - t, 0.0f);
-    }
-}
-
-// Convert noise value to terrain-like colors
-Vec3 noiseToTerrain(double noiseValue) {
-    float value = static_cast<float>(noiseValue);
-    
-    if (value < 0.3f) {
-        return Vec3(0.0f, 0.0f, 0.3f + value * 0.4f);
-    } else if (value < 0.4f) {
-        return Vec3(0.76f, 0.70f, 0.50f);
-    } else if (value < 0.6f) {
-        float t = (value - 0.4f) / 0.2f;
-        return Vec3(0.0f, 0.4f + t * 0.3f, 0.0f);
-    } else if (value < 0.8f) {
-        return Vec3(0.0f, 0.3f, 0.0f);
-    } else {
-        float t = (value - 0.8f) / 0.2f;
-        return Vec3(0.8f + t * 0.2f, 0.8f + t * 0.2f, 0.8f + t * 0.2f);
-    }
-}
-
-class NoiseTexture {
-private:
-    GLuint textureID;
-    int width, height;
-    std::vector<unsigned char> pixelData;
-
-public:
-    NoiseTexture(int w, int h) : width(w), height(h) {
-        pixelData.resize(width * height * 3);
-        glGenTextures(1, &textureID);
-        updateTexture();
-    }
-
-    ~NoiseTexture() {
-        glDeleteTextures(1, &textureID);
-    }
-
-    void generateNoise(const PerlinNoise& pn, double scale, int octaves, 
-                      const std::string& noiseType, const std::string& colorMap) {
-        for (int y = 0; y < height; ++y) {
-            for (int x = 0; x < width; ++x) {
-                double noise = 0.0;
-                
-                if (noiseType == "Basic") {
-                    noise = pn.noise(x * scale, y * scale);
-                } else if (noiseType == "FBM") {
-                    noise = pn.fractal(octaves, x * scale, y * scale);
-                } else if (noiseType == "Turbulence") {
-                    noise = pn.turbulence(octaves, x * scale, y * scale);
-                } else if (noiseType == "Ridged") {
-                    noise = pn.ridgedMultiFractal(octaves, x * scale, y * scale, 0.0, 2.0, 0.5, 1.0);
-                }
-                
-                Vec3 color;
-                if (colorMap == "Grayscale") {
-                    color = noiseToColor(noise);
-                } else if (colorMap == "Heatmap") {
-                    color = noiseToHeatmap(noise);
-                } else if (colorMap == "Terrain") {
-                    color = noiseToTerrain(noise);
-                }
-                
-                int index = (y * width + x) * 3;
-                pixelData[index] = static_cast<unsigned char>(color.x * 255);
-                pixelData[index + 1] = static_cast<unsigned char>(color.y * 255);
-                pixelData[index + 2] = static_cast<unsigned char>(color.z * 255);
-            }
-        }
-        updateTexture();
-    }
-
-    void updateTexture() {
-        glBindTexture(GL_TEXTURE_2D, textureID);
-        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, pixelData.data());
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    }
-
-    void draw(const char* label, const ImVec2& size) {
-        ImGui::Image((void*)(intptr_t)textureID, size);
-        ImGui::Text("%s", label);
-    }
-
-    GLuint getTextureID() const { return textureID; }
-};
-
-class NoiseComparisonApp {
-private:
-    GLFWwindow* window;
-    int windowWidth, windowHeight;
-    
-    // Noise parameters
-    double scale;
-    int octaves;
-    unsigned int seed;
-    std::string noiseType;
-    std::string colorMap;
-    
-    // Comparison views
-    struct ComparisonView {
-        std::unique_ptr<NoiseTexture> texture;
-        double scale;
-        int octaves;
-        unsigned int seed;
-        std::string noiseType;
-        std::string colorMap;
-        std::string label;
-    };
-    
-    std::vector<ComparisonView> views;
-    int textureSize;
-    
-    // Preset management
-    struct Preset {
-        std::string name;
-        double scale;
-        int octaves;
-        std::string noiseType;
-        std::string colorMap;
-    };
-    
-    std::vector<Preset> presets;
-    int selectedPreset;
-
-public:
-    NoiseComparisonApp() : windowWidth(1400), windowHeight(900), scale(0.01), octaves(4), 
-                          seed(42), noiseType("FBM"), colorMap("Grayscale"), textureSize(256) {
-        initializePresets();
-    }
-
-    bool initialize() {
-        if (!glfwInit()) return false;
-
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-        
-        window = glfwCreateWindow(windowWidth, windowHeight, "Perlin Noise Comparison Tool", NULL, NULL);
-        if (!window) {
-            glfwTerminate();
-            return false;
-        }
-
-        glfwMakeContextCurrent(window);
-        glfwSwapInterval(1);
-
-        IMGUI_CHECKVERSION();
-        ImGui::CreateContext();
-        ImGuiIO& io = ImGui::GetIO(); (void)io;
-        
-        ImGui::StyleColorsDark();
-        
-        ImGui_ImplGlfw_InitForOpenGL(window, true);
-        ImGui_ImplOpenGL3_Init("#version 130");
-        
-        // Initialize with some default views
-        addComparisonView("FBM", "Grayscale", 0.01, 4, 42, "FBM Grayscale");
-        addComparisonView("FBM", "Heatmap", 0.01, 4, 42, "FBM Heatmap");
-        addComparisonView("FBM", "Terrain", 0.01, 4, 42, "FBM Terrain");
-        
-        return true;
-    }
-
-    void initializePresets() {
-        presets = {
-            {"Basic Grayscale", 0.01, 1, "Basic", "Grayscale"},
-            {"FBM Grayscale", 0.01, 4, "FBM", "Grayscale"},
-            {"FBM Terrain", 0.01, 4, "FBM", "Terrain"},
-            {"Turbulence", 0.01, 4, "Turbulence", "Grayscale"},
-            {"Ridged Multi", 0.01, 4, "Ridged", "Grayscale"},
-            {"Large Scale", 0.002, 4, "FBM", "Grayscale"},
-            {"Small Scale", 0.05, 4, "FBM", "Grayscale"},
-            {"High Octaves", 0.01, 8, "FBM", "Grayscale"}
-        };
-        selectedPreset = 0;
-    }
-
-    void addComparisonView(const std::string& type, const std::string& cmap, 
-                          double sc, int oct, unsigned int sd, const std::string& lbl) {
-        ComparisonView view;
-        view.texture = std::make_unique<NoiseTexture>(textureSize, textureSize);
-        view.scale = sc;
-        view.octaves = oct;
-        view.seed = sd;
-        view.noiseType = type;
-        view.colorMap = cmap;
-        view.label = lbl;
-        
-        PerlinNoise pn(view.seed);
-        view.texture->generateNoise(pn, view.scale, view.octaves, view.noiseType, view.colorMap);
-        
-        views.push_back(std::move(view));
-    }
-
-    void run() {
-        while (!glfwWindowShouldClose(window)) {
-            glfwPollEvents();
-            
-            ImGui_ImplOpenGL3_NewFrame();
-            ImGui_ImplGlfw_NewFrame();
-            ImGui::NewFrame();
-            
-            renderUI();
-            
-            ImGui::Render();
-            
-            int display_w, display_h;
-            glfwGetFramebufferSize(window, &display_w, &display_h);
-            glViewport(0, 0, display_w, display_h);
-            glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
-            glClear(GL_COLOR_BUFFER_BIT);
-            
-            ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
-            
-            glfwSwapBuffers(window);
-        }
-    }
-
-    void renderUI() {
-        // Main control panel
-        ImGui::SetNextWindowPos(ImVec2(0, 0));
-        ImGui::SetNextWindowSize(ImVec2(300, windowHeight));
-        ImGui::Begin("Controls", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove);
-        
-        ImGui::Text("Noise Parameters");
-        ImGui::Separator();
-        
-        ImGui::SliderDouble("Scale", &scale, 0.001, 0.1, "%.3f");
-        ImGui::SliderInt("Octaves", &octaves, 1, 8);
-        ImGui::InputInt("Seed", (int*)&seed);
-        
-        const char* noiseTypes[] = {"Basic", "FBM", "Turbulence", "Ridged"};
-        ImGui::Combo("Noise Type", [](void* data, int idx, const char** out_text) {
-            *out_text = noiseTypes[idx];
-            return true;
-        }, nullptr, IM_ARRAYSIZE(noiseTypes));
-        noiseType = noiseTypes[ImGui::GetStateStorage()->GetInt(ImGui::GetID("Noise Type"), 0)];
-        
-        const char* colorMaps[] = {"Grayscale", "Heatmap", "Terrain"};
-        ImGui::Combo("Color Map", [](void* data, int idx, const char** out_text) {
-            *out_text = colorMaps[idx];
-            return true;
-        }, nullptr, IM_ARRAYSIZE(colorMaps));
-        colorMap = colorMaps[ImGui::GetStateStorage()->GetInt(ImGui::GetID("Color Map"), 0)];
-        
-        ImGui::Separator();
-        ImGui::Text("Texture Size: %d", textureSize);
-        ImGui::SliderInt("##TexSize", &textureSize, 64, 512);
-        
-        ImGui::Separator();
-        if (ImGui::Button("Generate Current")) {
-            std::string label = noiseType + " " + colorMap;
-            addComparisonView(noiseType, colorMap, scale, octaves, seed, label);
-        }
-        
-        ImGui::SameLine();
-        if (ImGui::Button("Clear All")) {
-            views.clear();
-        }
-        
-        ImGui::Separator();
-        ImGui::Text("Presets");
-        
-        std::vector<const char*> presetNames;
-        for (const auto& preset : presets) {
-            presetNames.push_back(preset.name.c_str());
-        }
-        
-        ImGui::Combo("##Presets", &selectedPreset, presetNames.data(), presetNames.size());
-        
-        if (ImGui::Button("Add Preset")) {
-            if (selectedPreset >= 0 && selectedPreset < presets.size()) {
-                const auto& preset = presets[selectedPreset];
-                addComparisonView(preset.noiseType, preset.colorMap, 
-                                preset.scale, preset.octaves, seed, preset.name);
-            }
-        }
-        
-        ImGui::SameLine();
-        if (ImGui::Button("Add All Presets")) {
-            for (const auto& preset : presets) {
-                addComparisonView(preset.noiseType, preset.colorMap, 
-                                preset.scale, preset.octaves, seed, preset.name);
-            }
-        }
-        
-        ImGui::Separator();
-        ImGui::Text("Quick Comparisons");
-        
-        if (ImGui::Button("Scale Comparison")) {
-            std::vector<double> scales = {0.002, 0.005, 0.01, 0.02, 0.05};
-            for (double sc : scales) {
-                std::string label = "Scale " + std::to_string(sc);
-                addComparisonView("FBM", "Grayscale", sc, 4, seed, label);
-            }
-        }
-        
-        ImGui::SameLine();
-        if (ImGui::Button("Octave Comparison")) {
-            for (int oct = 1; oct <= 6; ++oct) {
-                std::string label = oct + " Octaves";
-                addComparisonView("FBM", "Grayscale", 0.01, oct, seed, label);
-            }
-        }
-        
-        ImGui::End();
-        
-        // Main view area
-        ImGui::SetNextWindowPos(ImVec2(300, 0));
-        ImGui::SetNextWindowSize(ImVec2(windowWidth - 300, windowHeight));
-        ImGui::Begin("Noise Comparison", nullptr, 
-                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | 
-                    ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoBringToFrontOnFocus);
-        
-        ImVec2 imageSize(textureSize, textureSize);
-        int itemsPerRow = std::max(1, (int)((windowWidth - 320) / (textureSize + 20)));
-        
-        for (size_t i = 0; i < views.size(); ++i) {
-            auto& view = views[i];
-            
-            if (i % itemsPerRow != 0) ImGui::SameLine();
-            
-            ImGui::BeginGroup();
-            view.texture->draw(view.label.c_str(), imageSize);
-            
-            // Mini controls for each view
-            ImGui::PushID(static_cast<int>(i));
-            if (ImGui::SmallButton("Regenerate")) {
-                PerlinNoise pn(view.seed);
-                view.texture->generateNoise(pn, view.scale, view.octaves, view.noiseType, view.colorMap);
-            }
-            ImGui::SameLine();
-            if (ImGui::SmallButton("Remove")) {
-                views.erase(views.begin() + i);
-                ImGui::PopID();
-                break;
-            }
-            ImGui::PopID();
-            
-            ImGui::EndGroup();
-        }
-        
-        ImGui::End();
-    }
-
-    ~NoiseComparisonApp() {
-        ImGui_ImplOpenGL3_Shutdown();
-        ImGui_ImplGlfw_Shutdown();
-        ImGui::DestroyContext();
-        
-        glfwDestroyWindow(window);
-        glfwTerminate();
-    }
-};
-
-int main() {
-    NoiseComparisonApp app;
-    
-    if (!app.initialize()) {
-        std::cerr << "Failed to initialize application!" << std::endl;
-        return -1;
-    }
-    
-    app.run();
-    return 0;
-}

util/noise/noisetest.cpp

@@ -1,306 +0,0 @@
-// noisetest.cpp
-#include "pnoise.hpp"
-#include "../bmpwriter.hpp"
-#include <iostream>
-#include <vector>
-#include <string>
-#include <cmath>
-#include <algorithm>
-
-// Convert noise value to grayscale color
-Vec3 noiseToColor(double noiseValue) {
-    float value = static_cast<float>(noiseValue);
-    return Vec3(value, value, value);
-}
-
-// Convert noise value to color using a blue-to-red colormap
-Vec3 noiseToHeatmap(double noiseValue) {
-    // Blue (0.0) -> Cyan -> Green -> Yellow -> Red (1.0)
-    float value = static_cast<float>(noiseValue);
-    
-    if (value < 0.25f) {
-        // Blue to Cyan
-        float t = value / 0.25f;
-        return Vec3(0.0f, t, 1.0f);
-    } else if (value < 0.5f) {
-        // Cyan to Green
-        float t = (value - 0.25f) / 0.25f;
-        return Vec3(0.0f, 1.0f, 1.0f - t);
-    } else if (value < 0.75f) {
-        // Green to Yellow
-        float t = (value - 0.5f) / 0.25f;
-        return Vec3(t, 1.0f, 0.0f);
-    } else {
-        // Yellow to Red
-        float t = (value - 0.75f) / 0.25f;
-        return Vec3(1.0f, 1.0f - t, 0.0f);
-    }
-}
-
-// Convert noise value to terrain-like colors
-Vec3 noiseToTerrain(double noiseValue) {
-    float value = static_cast<float>(noiseValue);
-    
-    if (value < 0.3f) {
-        // Deep water to shallow water
-        return Vec3(0.0f, 0.0f, 0.3f + value * 0.4f);
-    } else if (value < 0.4f) {
-        // Sand
-        return Vec3(0.76f, 0.70f, 0.50f);
-    } else if (value < 0.6f) {
-        // Grass
-        float t = (value - 0.4f) / 0.2f;
-        return Vec3(0.0f, 0.4f + t * 0.3f, 0.0f);
-    } else if (value < 0.8f) {
-        // Forest
-        return Vec3(0.0f, 0.3f, 0.0f);
-    } else {
-        // Mountain to snow
-        float t = (value - 0.8f) / 0.2f;
-        return Vec3(0.8f + t * 0.2f, 0.8f + t * 0.2f, 0.8f + t * 0.2f);
-    }
-}
-
-// Generate basic 2D noise map
-void generateBasicNoise(const std::string& filename, int width, int height, 
-                       double scale = 0.01, unsigned int seed = 42) {
-    std::cout << "Generating basic noise: " << filename << std::endl;
-    
-    PerlinNoise pn(seed);
-    std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-    
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.noise(x * scale, y * scale);
-            pixels[y][x] = noiseToColor(noise);
-        }
-    }
-    
-    BMPWriter::saveBMP(filename, pixels);
-}
-
-// Generate fractal Brownian motion noise
-void generateFBMNoise(const std::string& filename, int width, int height,
-                     size_t octaves, double scale = 0.01, unsigned int seed = 42) {
-    std::cout << "Generating FBM noise (" << octaves << " octaves): " << filename << std::endl;
-    
-    PerlinNoise pn(seed);
-    std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-    
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.fractal(octaves, x * scale, y * scale);
-            pixels[y][x] = noiseToColor(noise);
-        }
-    }
-    
-    BMPWriter::saveBMP(filename, pixels);
-}
-
-// Generate turbulence noise
-void generateTurbulenceNoise(const std::string& filename, int width, int height,
-                           size_t octaves, double scale = 0.01, unsigned int seed = 42) {
-    std::cout << "Generating turbulence noise (" << octaves << " octaves): " << filename << std::endl;
-    
-    PerlinNoise pn(seed);
-    std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-    
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.turbulence(octaves, x * scale, y * scale);
-            pixels[y][x] = noiseToColor(noise);
-        }
-    }
-    
-    BMPWriter::saveBMP(filename, pixels);
-}
-
-// Generate ridged multi-fractal noise
-void generateRidgedNoise(const std::string& filename, int width, int height,
-                        size_t octaves, double scale = 0.01, unsigned int seed = 42,
-                        double lacunarity = 2.0, double gain = 0.5, double offset = 1.0) {
-    std::cout << "Generating ridged multi-fractal noise (" << octaves << " octaves): " << filename << std::endl;
-    
-    PerlinNoise pn(seed);
-    std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-    
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.ridgedMultiFractal(octaves, x * scale, y * scale, 
-                                               0.0, lacunarity, gain, offset);
-            pixels[y][x] = noiseToColor(noise);
-        }
-    }
-    
-    BMPWriter::saveBMP(filename, pixels);
-}
-
-// Generate noise with different color mappings
-void generateColoredNoise(const std::string& filename, int width, int height,
-                         double scale = 0.01, unsigned int seed = 42,
-                         const std::string& colorMap = "heatmap") {
-    std::cout << "Generating colored noise (" << colorMap << "): " << filename << std::endl;
-    
-    PerlinNoise pn(seed);
-    std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-    
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.noise(x * scale, y * scale);
-            
-            if (colorMap == "heatmap") {
-                pixels[y][x] = noiseToHeatmap(noise);
-            } else if (colorMap == "terrain") {
-                pixels[y][x] = noiseToTerrain(noise);
-            } else {
-                pixels[y][x] = noiseToColor(noise);
-            }
-        }
-    }
-    
-    BMPWriter::saveBMP(filename, pixels);
-}
-
-// Generate multi-octave comparison
-void generateOctaveComparison(const std::string& baseFilename, int width, int height,
-                            double scale = 0.01, unsigned int seed = 42) {
-    for (size_t octaves = 1; octaves <= 6; ++octaves) {
-        std::string filename = baseFilename + "_octaves_" + std::to_string(octaves) + ".bmp";
-        generateFBMNoise(filename, width, height, octaves, scale, seed);
-    }
-}
-
-// Generate scale comparison
-void generateScaleComparison(const std::string& baseFilename, int width, int height,
-                           unsigned int seed = 42) {
-    std::vector<double> scales = {0.002, 0.005, 0.01, 0.02, 0.05, 0.1};
-    
-    for (double scale : scales) {
-        std::string filename = baseFilename + "_scale_" + std::to_string(scale) + ".bmp";
-        generateBasicNoise(filename, width, height, scale, seed);
-    }
-}
-
-// Generate seed comparison
-void generateSeedComparison(const std::string& baseFilename, int width, int height,
-                          double scale = 0.01) {
-    std::vector<unsigned int> seeds = {42, 123, 456, 789, 1000};
-    
-    for (unsigned int seed : seeds) {
-        std::string filename = baseFilename + "_seed_" + std::to_string(seed) + ".bmp";
-        generateBasicNoise(filename, width, height, scale, seed);
-    }
-}
-
-// Generate combined effects (FBM with different color maps)
-void generateCombinedEffects(const std::string& baseFilename, int width, int height,
-                           double scale = 0.01, unsigned int seed = 42) {
-    PerlinNoise pn(seed);
-    
-    // FBM with grayscale
-    std::vector<std::vector<Vec3>> pixels1(height, std::vector<Vec3>(width));
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.fractal(4, x * scale, y * scale);
-            pixels1[y][x] = noiseToColor(noise);
-        }
-    }
-    BMPWriter::saveBMP(baseFilename + "_fbm_grayscale.bmp", pixels1);
-    
-    // FBM with heatmap
-    std::vector<std::vector<Vec3>> pixels2(height, std::vector<Vec3>(width));
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.fractal(4, x * scale, y * scale);
-            pixels2[y][x] = noiseToHeatmap(noise);
-        }
-    }
-    BMPWriter::saveBMP(baseFilename + "_fbm_heatmap.bmp", pixels2);
-    
-    // FBM with terrain
-    std::vector<std::vector<Vec3>> pixels3(height, std::vector<Vec3>(width));
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            double noise = pn.fractal(4, x * scale, y * scale);
-            pixels3[y][x] = noiseToTerrain(noise);
-        }
-    }
-    BMPWriter::saveBMP(baseFilename + "_fbm_terrain.bmp", pixels3);
-}
-
-// Generate 3D slice noise (showing different Z slices)
-void generate3DSlices(const std::string& baseFilename, int width, int height,
-                     double scale = 0.01, unsigned int seed = 42) {
-    PerlinNoise pn(seed);
-    
-    std::vector<double> zSlices = {0.0, 0.2, 0.4, 0.6, 0.8, 1.0};
-    
-    for (size_t i = 0; i < zSlices.size(); ++i) {
-        std::vector<std::vector<Vec3>> pixels(height, std::vector<Vec3>(width));
-        double z = zSlices[i] * 10.0; // Scale Z for meaningful variation
-        
-        for (int y = 0; y < height; ++y) {
-            for (int x = 0; x < width; ++x) {
-                double noise = pn.noise(x * scale, y * scale, z);
-                pixels[y][x] = noiseToColor(noise);
-            }
-        }
-        
-        std::string filename = baseFilename + "_zslice_" + std::to_string(i) + ".bmp";
-        BMPWriter::saveBMP(filename, pixels);
-        std::cout << "Generated 3D slice " << i << ": " << filename << std::endl;
-    }
-}
-
-int main() {
-    const int WIDTH = 512;
-    const int HEIGHT = 512;
-    
-    std::cout << "Generating Perlin noise variations..." << std::endl;
-    std::cout << "=====================================" << std::endl;
-    
-    // 1. Basic noise variations
-    std::cout << "\n1. Basic Noise Variations:" << std::endl;
-    generateBasicNoise("output/basic_noise.bmp", WIDTH, HEIGHT, 0.01, 42);
-    
-    // 2. Fractal Brownian Motion with different octaves
-    std::cout << "\n2. FBM Noise (Multiple Octaves):" << std::endl;
-    generateOctaveComparison("output/fbm", WIDTH, HEIGHT, 0.01, 42);
-    
-    // 3. Turbulence noise
-    std::cout << "\n3. Turbulence Noise:" << std::endl;
-    generateTurbulenceNoise("output/turbulence_4oct.bmp", WIDTH, HEIGHT, 4, 0.01, 42);
-    generateTurbulenceNoise("output/turbulence_6oct.bmp", WIDTH, HEIGHT, 6, 0.01, 42);
-    
-    // 4. Ridged multi-fractal noise
-    std::cout << "\n4. Ridged Multi-Fractal Noise:" << std::endl;
-    generateRidgedNoise("output/ridged_4oct.bmp", WIDTH, HEIGHT, 4, 0.01, 42, 2.0, 0.5, 1.0);
-    generateRidgedNoise("output/ridged_6oct.bmp", WIDTH, HEIGHT, 6, 0.01, 42, 2.0, 0.5, 1.0);
-    
-    // 5. Different color mappings
-    std::cout << "\n5. Color Mappings:" << std::endl;
-    generateColoredNoise("output/heatmap_noise.bmp", WIDTH, HEIGHT, 0.01, 42, "heatmap");
-    generateColoredNoise("output/terrain_noise.bmp", WIDTH, HEIGHT, 0.01, 42, "terrain");
-    
-    // 6. Scale variations
-    std::cout << "\n6. Scale Variations:" << std::endl;
-    generateScaleComparison("output/scale_test", WIDTH, HEIGHT, 42);
-    
-    // 7. Seed variations
-    std::cout << "\n7. Seed Variations:" << std::endl;
-    generateSeedComparison("output/seed_test", WIDTH, HEIGHT, 0.01);
-    
-    // 8. Combined effects
-    std::cout << "\n8. Combined Effects:" << std::endl;
-    generateCombinedEffects("output/combined", WIDTH, HEIGHT, 0.01, 42);
-    
-    // 9. 3D slices
-    std::cout << "\n9. 3D Slices:" << std::endl;
-    generate3DSlices("output/3d_slice", WIDTH, HEIGHT, 0.01, 42);
-    
-    std::cout << "\n=====================================" << std::endl;
-    std::cout << "All noise maps generated successfully!" << std::endl;
-    std::cout << "Check the 'output' directory for BMP files." << std::endl;
-    
-    return 0;
-}

util/noise/pnoise.cpp

@@ -0,0 +1,389 @@
+#ifndef PNOISE_CPP
+#define PNOISE_CPP
+
+#include <vector>
+#include <cmath>
+#include <cstring>
+#include <algorithm>
+#include <iostream>
+#include <fstream>
+#include <sstream>
+
+#include "./pnoise2.hpp"
+#include "../jsonhelper.hpp"
+#include "../timing_decorator.hpp"
+#include "../../imgui/imgui.h"
+#include <GLFW/glfw3.h>
+
+enum class NoiseType {
+    Perlin = 0,
+    Value = 1,
+    Fractal = 2,
+    Turbulence = 3,
+    Ridged = 4,
+    Billow = 5,
+    WhiteNoise = 6,
+    WorleyNoise = 7,
+    VoronoiNoise = 8,
+    CrystalNoise = 9,
+    DomainWarp = 10,
+    CurlNoise = 11
+};
+
+enum class BlendMode {
+    Add = 0,
+    Subtract = 1,
+    Multiply = 2,
+    Min = 3,
+    Max = 4,
+    Replace = 5,
+    DomainWarp = 6 
+};
+
+struct NoiseLayer {
+    bool enabled = true;
+    char name[32] = "Layer";
+    
+    NoiseType type = NoiseType::Perlin;
+    BlendMode blend = BlendMode::Add;
+    
+    int seedOffset = 0;
+    float scale = 0.02f;
+    float strength = 1.0f;
+    int octaves = 4;
+    float persistence = 0.5f;
+    float lacunarity = 2.0f;
+    float ridgeOffset = 1.0f;
+};
+
+struct NoisePreviewState {
+    int width = 512;
+    int height = 512;
+    int masterSeed = 1337;
+    float offset[2] = {0.0f, 0.0f}; 
+    std::vector<NoiseLayer> layers;
+    GLuint textureId = 0;
+    std::vector<uint8_t> pixelBuffer;
+    bool needsUpdate = true;
+};
+
+inline float sampleNoiseLayer(PNoise2& gen, NoiseType type, Eigen::Vector2f point, const NoiseLayer& layer) {
+    float val = 0.0f;
+    switch (type) {
+        case NoiseType::Perlin:
+            val = gen.permute(point); 
+            break;
+        case NoiseType::Value:
+            val = gen.valueNoise(point); 
+            break;
+        case NoiseType::Fractal:
+            val = gen.fractalNoise(point, layer.octaves, layer.persistence, layer.lacunarity);
+            break;
+        case NoiseType::Turbulence:
+            val = gen.turbulence(point, layer.octaves);
+            val = (val * 2.0f) - 1.0f; 
+            break;
+        case NoiseType::Ridged:
+            val = gen.ridgedNoise(point, layer.octaves, layer.ridgeOffset);
+            val = (val * 0.5f) - 1.0f; 
+            break;
+        case NoiseType::Billow:
+            val = gen.billowNoise(point, layer.octaves);
+            val = (val * 2.0f) - 1.0f;
+            break;
+        case NoiseType::WhiteNoise:
+            val = gen.whiteNoise(point);
+            break;
+        case NoiseType::WorleyNoise:
+            val = gen.worleyNoise(point);
+            break;
+        case NoiseType::VoronoiNoise:
+            val = gen.voronoiNoise(point);
+            break;
+        case NoiseType::CrystalNoise:
+            val = gen.crystalNoise(point);
+            break;
+        case NoiseType::DomainWarp:
+            val = gen.domainWarp(point, 1.0f); 
+            break;
+        case NoiseType::CurlNoise:
+            Eigen::Vector2f flow = gen.curlNoise(point);
+            val = flow.norm(); 
+            break;
+    }
+    return val;
+}
+
+inline void updateNoiseTexture(NoisePreviewState& state) {
+    TIME_FUNCTION;
+    if (state.textureId == 0) glGenTextures(1, &state.textureId);
+    
+    state.pixelBuffer.resize(state.width * state.height * 3);
+    
+    #pragma omp parallel for
+    for (int y = 0; y < state.height; ++y) {
+        PNoise2 generator(state.masterSeed); 
+
+        for (int x = 0; x < state.width; ++x) {
+            
+            float nx = (x + state.offset[0]);
+            float ny = (y + state.offset[1]);
+            Eigen::Vector2f point(nx, ny);
+            
+            float finalValue = 0.0f;
+            
+            for (const auto& layer : state.layers) {
+                if (!layer.enabled) continue;
+
+                Eigen::Vector2f samplePoint = point * layer.scale;
+                
+                samplePoint += Eigen::Vector2f((float)layer.seedOffset * 10.5f, (float)layer.seedOffset * -10.5f);
+
+                if (layer.blend == BlendMode::DomainWarp) {
+                    if (layer.type == NoiseType::CurlNoise) {
+                         Eigen::Vector2f flow = generator.curlNoise(samplePoint);
+                         point += flow * layer.strength * 100.0f; 
+                    } else {
+                        float warpX = sampleNoiseLayer(generator, layer.type, samplePoint, layer);
+                        float warpY = sampleNoiseLayer(generator, layer.type, samplePoint + Eigen::Vector2f(5.2f, 1.3f), layer);
+                        point += Eigen::Vector2f(warpX, warpY) * layer.strength * 100.0f;
+                    }
+                    continue; 
+                }
+
+                float nVal = sampleNoiseLayer(generator, layer.type, samplePoint, layer);
+                
+                switch (layer.blend) {
+                    case BlendMode::Replace:
+                        finalValue = nVal * layer.strength;
+                        break;
+                    case BlendMode::Add:
+                        finalValue += nVal * layer.strength;
+                        break;
+                    case BlendMode::Subtract:
+                        finalValue -= nVal * layer.strength;
+                        break;
+                    case BlendMode::Multiply:
+                        finalValue *= (nVal * layer.strength);
+                        break;
+                    case BlendMode::Max:
+                        finalValue = std::max(finalValue, nVal * layer.strength);
+                        break;
+                    case BlendMode::Min:
+                        finalValue = std::min(finalValue, nVal * layer.strength);
+                        break;
+                }
+            }
+            
+            float norm = std::tanh(finalValue); 
+            norm = (norm + 1.0f) * 0.5f;
+            norm = std::clamp(norm, 0.0f, 1.0f);
+            
+            uint8_t color = static_cast<uint8_t>(norm * 255);
+            int idx = (y * state.width + x) * 3;
+            state.pixelBuffer[idx] = color;
+            state.pixelBuffer[idx+1] = color;
+            state.pixelBuffer[idx+2] = color;
+        }
+    }
+
+    glBindTexture(GL_TEXTURE_2D, state.textureId);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, state.width, state.height, 
+                 0, GL_RGB, GL_UNSIGNED_BYTE, state.pixelBuffer.data());
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    
+    state.needsUpdate = false;
+}
+
+inline void saveNoiseState(const NoisePreviewState& state, const std::string& filename) {
+    std::ofstream out(filename);
+    if (!out) return;
+
+    out << "{\n";
+    out << "  \"masterSeed\": " << state.masterSeed << ",\n";
+    out << "  \"offsetX\": " << state.offset[0] << ",\n";
+    out << "  \"offsetY\": " << state.offset[1] << ",\n";
+    out << "  \"layers\": [\n";
+    
+    for (size_t i = 0; i < state.layers.size(); ++i) {
+        const auto& l = state.layers[i];
+        out << "    {\n";
+        out << "      \"enabled\": " << (l.enabled ? "true" : "false") << ",\n";
+        out << "      \"name\": \"" << l.name << "\",\n";
+        out << "      \"type\": " << (int)l.type << ",\n";
+        out << "      \"blend\": " << (int)l.blend << ",\n";
+        out << "      \"seedOffset\": " << l.seedOffset << ",\n";
+        out << "      \"scale\": " << l.scale << ",\n";
+        out << "      \"strength\": " << l.strength << ",\n";
+        out << "      \"octaves\": " << l.octaves << ",\n";
+        out << "      \"persistence\": " << l.persistence << ",\n";
+        out << "      \"lacunarity\": " << l.lacunarity << ",\n";
+        out << "      \"ridgeOffset\": " << l.ridgeOffset << "\n";
+        out << "    }" << (i < state.layers.size() - 1 ? "," : "") << "\n";
+    }
+    
+    out << "  ]\n";
+    out << "}\n";
+}
+
+inline void loadNoiseState(NoisePreviewState& state, const std::string& filename) {
+    std::ifstream in(filename);
+    if (!in) return;
+
+    std::stringstream buffer;
+    buffer << in.rdbuf();
+    std::string json = buffer.str();
+
+    state.masterSeed = JsonHelper::parseInt(json, "masterSeed", 1337);
+    state.offset[0] = JsonHelper::parseFloat(json, "offsetX", 0.0f);
+    state.offset[1] = JsonHelper::parseFloat(json, "offsetY", 0.0f);
+    
+    auto layerStrs = JsonHelper::parseArray(json, "layers");
+    state.layers.clear();
+    
+    for (const auto& lStr : layerStrs) {
+        NoiseLayer l;
+        l.enabled = JsonHelper::parseBool(lStr, "enabled", true);
+        std::string name = JsonHelper::parseString(lStr, "name");
+        if (!name.empty()) {
+            std::strncpy(l.name, name.c_str(), 31);
+            l.name[31] = '\0';
+        }
+        l.type = (NoiseType)JsonHelper::parseInt(lStr, "type", 0);
+        l.blend = (BlendMode)JsonHelper::parseInt(lStr, "blend", 0);
+        l.seedOffset = JsonHelper::parseInt(lStr, "seedOffset", 0);
+        l.scale = JsonHelper::parseFloat(lStr, "scale", 0.02f);
+        l.strength = JsonHelper::parseFloat(lStr, "strength", 1.0f);
+        l.octaves = JsonHelper::parseInt(lStr, "octaves", 4);
+        l.persistence = JsonHelper::parseFloat(lStr, "persistence", 0.5f);
+        l.lacunarity = JsonHelper::parseFloat(lStr, "lacunarity", 2.0f);
+        l.ridgeOffset = JsonHelper::parseFloat(lStr, "ridgeOffset", 1.0f);
+        
+        state.layers.push_back(l);
+    }
+    state.needsUpdate = true;
+}
+
+inline void drawNoiseLab(NoisePreviewState& noiseState) {
+    ImGui::Begin("2D Noise Lab");
+    
+    bool changed = false;
+    
+    static char filenameBuffer[128] = "output/noise_preset.json";
+    ImGui::InputText("File", filenameBuffer, sizeof(filenameBuffer));
+    ImGui::SameLine();
+    if (ImGui::Button("Save JSON")) {
+        saveNoiseState(noiseState, filenameBuffer);
+    }
+    ImGui::SameLine();
+    if (ImGui::Button("Load JSON")) {
+        loadNoiseState(noiseState, filenameBuffer);
+        changed = true;
+    }
+
+    ImGui::Separator();
+
+    changed |= ImGui::InputInt("Master Seed", &noiseState.masterSeed);
+    changed |= ImGui::DragFloat2("Pan Offset", noiseState.offset, 1.0f);
+    
+    ImGui::Separator();
+    
+    if (ImGui::Button("Add Layer")) {
+        NoiseLayer l;
+        sprintf(l.name, "Layer %zu", noiseState.layers.size());
+        noiseState.layers.push_back(l);
+        changed = true;
+    }
+    
+    ImGui::SameLine();
+    if (ImGui::Button("Clear All")) {
+        noiseState.layers.clear();
+        changed = true;
+    }
+    
+    ImGui::BeginChild("LayersScroll", ImVec2(0, 300), true);
+    
+    for (int i = 0; i < noiseState.layers.size(); ++i) {
+        NoiseLayer& layer = noiseState.layers[i];
+        
+        ImGui::PushID(i);
+        
+        bool open = ImGui::CollapsingHeader(layer.name, ImGuiTreeNodeFlags_DefaultOpen);
+        
+        if (ImGui::BeginPopupContextItem()) {
+            if (ImGui::MenuItem("Move Up", nullptr, false, i > 0)) {
+                std::swap(noiseState.layers[i], noiseState.layers[i-1]);
+                changed = true;
+                ImGui::CloseCurrentPopup();
+            }
+            if (ImGui::MenuItem("Move Down", nullptr, false, i < noiseState.layers.size()-1)) {
+                std::swap(noiseState.layers[i], noiseState.layers[i+1]);
+                changed = true;
+                ImGui::CloseCurrentPopup();
+            }
+            if (ImGui::MenuItem("Duplicate")) {
+                noiseState.layers.insert(noiseState.layers.begin() + i, layer);
+                changed = true;
+                ImGui::CloseCurrentPopup();
+            }
+            if (ImGui::MenuItem("Delete")) {
+                noiseState.layers.erase(noiseState.layers.begin() + i);
+                changed = true;
+                ImGui::CloseCurrentPopup();
+                ImGui::EndPopup();
+                ImGui::PopID();
+                continue; 
+            }
+            ImGui::EndPopup();
+        }
+
+        if (open) {
+            if (ImGui::Checkbox("##enabled", &layer.enabled)) changed = true;
+            ImGui::SameLine();
+            ImGui::InputText("##name", layer.name, 32);
+
+            const char* types[] = { "Perlin", "Value", "Fractal", "Turbulence", "Ridged", "Billow", "White", "Worley", "Voronoi", "Crystal", "Domain Warp", "Curl" };
+            const char* blends[] = { "Add", "Subtract", "Multiply", "Min", "Max", "Replace", "Domain Warp (Coord)" };
+            
+            if (ImGui::Combo("Type", (int*)&layer.type, types, IM_ARRAYSIZE(types))) changed = true;
+            if (ImGui::Combo("Blend", (int*)&layer.blend, blends, IM_ARRAYSIZE(blends))) changed = true;
+
+            if (ImGui::SliderFloat("Scale", &layer.scale, 0.0001f, 0.2f, "%.5f")) changed = true;
+            if (ImGui::SliderFloat("Strength/Weight", &layer.strength, 0.0f, 5.0f)) changed = true;
+            if (ImGui::SliderInt("Seed Offset", &layer.seedOffset, 0, 100)) changed = true;
+
+            if (layer.type == NoiseType::Fractal || layer.type == NoiseType::Turbulence || 
+                layer.type == NoiseType::Ridged || layer.type == NoiseType::Billow) {
+                
+                if (ImGui::SliderInt("Octaves", &layer.octaves, 1, 10)) changed = true;
+                if (layer.type == NoiseType::Fractal) {
+                    if (ImGui::SliderFloat("Persistence", &layer.persistence, 0.0f, 1.0f)) changed = true;
+                    if (ImGui::SliderFloat("Lacunarity", &layer.lacunarity, 1.0f, 4.0f)) changed = true;
+                }
+                if (layer.type == NoiseType::Ridged) {
+                    if (ImGui::SliderFloat("Ridge Offset", &layer.ridgeOffset, 0.0f, 2.0f)) changed = true;
+                }
+            }
+            
+            ImGui::Separator();
+        }
+        
+        ImGui::PopID();
+    }
+    ImGui::EndChild();
+
+    ImGui::Separator();
+    
+    ImGui::Text("Preview Output");
+    ImGui::Image((void*)(intptr_t)noiseState.textureId, ImVec2((float)noiseState.width, (float)noiseState.height));
+    
+    if (changed || noiseState.needsUpdate) {
+        updateNoiseTexture(noiseState);
+    }
+    
+    ImGui::End();
+}
+
+#endif

util/noise/pnoise.hpp

@@ -1,204 +0,0 @@
-
-#ifndef PERLIN_NOISE_HPP
-#define PERLIN_NOISE_HPP
-
-#include <vector>
-#include <cmath>
-#include <random>
-#include <algorithm>
-#include <functional>
-
-class PerlinNoise {
-private:
-    std::vector<int> permutation;
-
-    // Fade function as defined by Ken Perlin
-    static double fade(double t) {
-        return t * t * t * (t * (t * 6 - 15) + 10);
-    }
-
-    // Linear interpolation
-    static double lerp(double t, double a, double b) {
-        return a + t * (b - a);
-    }
-
-    // Gradient function
-    static double grad(int hash, double x, double y, double z) {
-        int h = hash & 15;
-        double u = h < 8 ? x : y;
-        double v = h < 4 ? y : (h == 12 || h == 14 ? x : z);
-        return ((h & 1) == 0 ? u : -u) + ((h & 2) == 0 ? v : -v);
-    }
-
-public:
-    // Constructor with optional seed
-    PerlinNoise(unsigned int seed = 0) {
-        permutation.resize(256);
-        // Initialize with values 0-255
-        for (int i = 0; i < 256; ++i) {
-            permutation[i] = i;
-        }
-        
-        // Shuffle using the seed
-        std::shuffle(permutation.begin(), permutation.end(), std::default_random_engine(seed));
-        
-        // Duplicate the permutation vector
-        permutation.insert(permutation.end(), permutation.begin(), permutation.end());
-    }
-
-    // 1D Perlin noise
-    double noise(double x) const {
-        return noise(x, 0.0, 0.0);
-    }
-
-    // 2D Perlin noise
-    double noise(double x, double y) const {
-        return noise(x, y, 0.0);
-    }
-
-    // 3D Perlin noise (main implementation)
-    double noise(double x, double y, double z) const {
-        // Find unit cube that contains the point
-        int X = (int)floor(x) & 255;
-        int Y = (int)floor(y) & 255;
-        int Z = (int)floor(z) & 255;
-
-        // Find relative x, y, z of point in cube
-        x -= floor(x);
-        y -= floor(y);
-        z -= floor(z);
-
-        // Compute fade curves for x, y, z
-        double u = fade(x);
-        double v = fade(y);
-        double w = fade(z);
-
-        // Hash coordinates of the 8 cube corners
-        int A = permutation[X] + Y;
-        int AA = permutation[A] + Z;
-        int AB = permutation[A + 1] + Z;
-        int B = permutation[X + 1] + Y;
-        int BA = permutation[B] + Z;
-        int BB = permutation[B + 1] + Z;
-
-        // Add blended results from 8 corners of cube
-        double res = lerp(w, lerp(v, lerp(u, grad(permutation[AA], x, y, z),
-                                            grad(permutation[BA], x - 1, y, z)),
-                                    lerp(u, grad(permutation[AB], x, y - 1, z),
-                                            grad(permutation[BB], x - 1, y - 1, z))),
-                            lerp(v, lerp(u, grad(permutation[AA + 1], x, y, z - 1),
-                                            grad(permutation[BA + 1], x - 1, y, z - 1)),
-                                    lerp(u, grad(permutation[AB + 1], x, y - 1, z - 1),
-                                            grad(permutation[BB + 1], x - 1, y - 1, z - 1))));
-        return (res + 1.0) / 2.0; // Normalize to [0,1]
-    }
-
-    // Fractal Brownian Motion (fBm) - multiple octaves of noise
-    double fractal(size_t octaves, double x, double y = 0.0, double z = 0.0) const {
-        double value = 0.0;
-        double amplitude = 1.0;
-        double frequency = 1.0;
-        double maxValue = 0.0;
-
-        for (size_t i = 0; i < octaves; ++i) {
-            value += amplitude * noise(x * frequency, y * frequency, z * frequency);
-            maxValue += amplitude;
-            amplitude *= 0.5;
-            frequency *= 2.0;
-        }
-
-        return value / maxValue;
-    }
-
-    // Turbulence - absolute value of noise for more dramatic effects
-    double turbulence(size_t octaves, double x, double y = 0.0, double z = 0.0) const {
-        double value = 0.0;
-        double amplitude = 1.0;
-        double frequency = 1.0;
-        double maxValue = 0.0;
-
-        for (size_t i = 0; i < octaves; ++i) {
-            value += amplitude * std::abs(noise(x * frequency, y * frequency, z * frequency));
-            maxValue += amplitude;
-            amplitude *= 0.5;
-            frequency *= 2.0;
-        }
-
-        return value / maxValue;
-    }
-
-    // Ridged multi-fractal - creates ridge-like patterns
-    double ridgedMultiFractal(size_t octaves, double x, double y = 0.0, double z = 0.0, 
-                             double lacunarity = 2.0, double gain = 0.5, double offset = 1.0) const {
-        double value = 0.0;
-        double amplitude = 1.0;
-        double frequency = 1.0;
-        double prev = 1.0;
-        double weight;
-
-        for (size_t i = 0; i < octaves; ++i) {
-            double signal = offset - std::abs(noise(x * frequency, y * frequency, z * frequency));
-            signal *= signal;
-            signal *= prev;
-            
-            weight = std::clamp(signal * gain, 0.0, 1.0);
-            value += signal * amplitude;
-            prev = weight;
-            amplitude *= weight;
-            frequency *= lacunarity;
-        }
-
-        return value;
-    }
-};
-
-// Utility functions for common noise operations
-namespace PerlinUtils {
-    // Create a 1D noise array
-    static std::vector<double> generate1DNoise(int width, double scale = 1.0, unsigned int seed = 0) {
-        PerlinNoise pn(seed);
-        std::vector<double> result(width);
-        
-        for (int x = 0; x < width; ++x) {
-            result[x] = pn.noise(x * scale);
-        }
-        
-        return result;
-    }
-
-    // Create a 2D noise array
-    static std::vector<std::vector<double>> generate2DNoise(int width, int height, 
-                                                           double scale = 1.0, unsigned int seed = 0) {
-        PerlinNoise pn(seed);
-        std::vector<std::vector<double>> result(height, std::vector<double>(width));
-        
-        for (int y = 0; y < height; ++y) {
-            for (int x = 0; x < width; ++x) {
-                result[y][x] = pn.noise(x * scale, y * scale);
-            }
-        }
-        
-        return result;
-    }
-
-    // Create a 3D noise array
-    static std::vector<std::vector<std::vector<double>>> generate3DNoise(int width, int height, int depth,
-                                                                        double scale = 1.0, unsigned int seed = 0) {
-        PerlinNoise pn(seed);
-        std::vector<std::vector<std::vector<double>>> result(
-            depth, std::vector<std::vector<double>>(
-                height, std::vector<double>(width)));
-        
-        for (int z = 0; z < depth; ++z) {
-            for (int y = 0; y < height; ++y) {
-                for (int x = 0; x < width; ++x) {
-                    result[z][y][x] = pn.noise(x * scale, y * scale, z * scale);
-                }
-            }
-        }
-        
-        return result;
-    }
-}
-
-#endif

util/noise/pnoise2.hpp

@@ -6,43 +6,80 @@
 #include <algorithm>
 #include <functional>
 #include <random>
-#include "../vectorlogic/vec2.hpp"
+#include <limits>
-#include "../vectorlogic/vec3.hpp"
+#include "../../eigen/Eigen/Core"
 #include "../timing_decorator.hpp"
+#include "../basicdefines.hpp"
 
 class PNoise2 {
 private:
     std::vector<int> permutation;
     std::default_random_engine rng;
     
+    using Vector2f = Eigen::Vector2f;
+    using Vector3f = Eigen::Vector3f;
+    using Vector4f = Eigen::Vector4f;
+    
+    /// @brief Linear interpolation between two values
+    /// @param t Interpolation factor [0,1]
+    /// @param a1 First value
+    /// @param a2 Second value
+    /// @return Interpolated value between a1 and a2
+    /// @note Changing interpolation method affects noise smoothness
     float lerp(float t, float a1, float a2) {
         return a1 + t * (a2 - a1);
     }
 
+    /// @brief Fade function for smooth interpolation
+    /// @param t Input parameter
+    /// @return Smoothed t value using 6t^5 - 15t^4 + 10t^3
+    /// @note Critical for gradient continuity; changes affect noise smoothness
     static double fade(double t) {
         return t * t * t * (t * (t * 6 - 15) + 10);
     }
 
-    Vec2 GetConstantVector(int v) {
+    /// @brief Get constant gradient vector for 2D Perlin noise
+    /// @param v Hash value (0-3)
+    /// @return One of four 2D gradient vectors
+    /// @note Changing vectors affects noise pattern orientation
+    Vector2f GetConstantVector(int v) {
         int h = v & 3;
-        if (h == 0) return Vec2(1,1);
+        if (h == 0) return Vector2f(1,1);
-        else if (h == 1) return Vec2(-1,1);
+        else if (h == 1) return Vector2f(-1,1);
-        else if (h == 2) return Vec2(-1,-1);
+        else if (h == 2) return Vector2f(-1,-1);
-        else return Vec2(1,-1);
+        else return Vector2f(1,-1);
     }
 
-    Vec3ui8 GetConstantVector3(int v) {
+    /// @brief Get constant gradient vector for 3D Perlin noise
-        int h = v & 7;
+    /// @param v Hash value (0-11)
-        if (h == 0) return Vec3ui8(1,1,1);
+    /// @return One of twelve 3D gradient vectors
-        else if (h == 1) return Vec3ui8(-1,1, 1);
+    /// @note Vector selection affects 3D noise patterns
-        else if (h == 2) return Vec3ui8(-1,-1, 1);
+    Vector3f GetConstantVector3(int v) {
-        else if (h == 3) return Vec3ui8(-1,-1, 1);
+        int h = v & 11;
-        else if (h == 4) return Vec3ui8(-1,-1,-1);
+        switch(h) {
-        else if (h == 5) return Vec3ui8(-1,-1, -1);
+            case 0: return Vector3f( 1, 1, 0);
-        else if (h == 6) return Vec3ui8(-1,-1, -1);
+            case 1: return Vector3f(-1, 1, 0);
-        else return Vec3ui8(1,-1, -1);
+            case 2: return Vector3f( 1,-1, 0);
+            case 3: return Vector3f(-1,-1, 0);
+            case 4: return Vector3f( 1, 0, 1);
+            case 5: return Vector3f(-1, 0, 1);
+            case 6: return Vector3f( 1, 0,-1);
+            case 7: return Vector3f(-1, 0,-1);
+            case 8: return Vector3f( 0, 1, 1);
+            case 9: return Vector3f( 0,-1, 1);
+            case 10: return Vector3f( 0, 1,-1);
+            case 11: return Vector3f( 0,-1,-1);
+            default: return Vector3f(0,0,0);
+        }
     }
 
+    /// @brief Gradient function for 2D/3D Perlin noise
+    /// @param hash Hash value for gradient selection
+    /// @param x X coordinate
+    /// @param y Y coordinate
+    /// @param z Z coordinate (default 0 for 2D)
+    /// @return Dot product of gradient vector and distance vector
+    /// @note Core of Perlin noise; changes affect basic noise character
     static double grad(int hash, double x, double y, double z = 0.0) {
         int h = hash & 15;
         double u = h < 8 ? x : y;
@@ -50,6 +87,21 @@ private:
         return ((h & 1) == 0 ? u : -u) + ((h & 2) == 0 ? v : -v);
     }
 
+    /// @brief Gradient function for 2D only Perlin noise
+    /// @param hash Hash value for gradient selection
+    /// @param x X coordinate
+    /// @param y Y coordinate
+    /// @return Dot product of gradient vector and distance vector
+    /// @note Core of Perlin noise; changes affect basic noise character
+    inline static float grad2(int hash, float x, float y) {
+        int h = hash & 15;
+        float u = h < 8 ? x : y;
+        float v = h < 4 ? y : ((h == 12 || h == 14) ? x : 0.0f);
+        return ((h & 1) == 0 ? u : -u) + ((h & 2) == 0 ? v : -v);
+    }
+
+    /// @brief Initialize permutation table with shuffled values
+    /// @note Called on construction; changing seed or shuffle affects all noise patterns
     void initializePermutation() {
         permutation.clear();
         std::vector<int> permutationt;
@@ -61,70 +113,180 @@ private:
         permutation.insert(permutation.end(), permutationt.begin(), permutationt.end());
         permutation.insert(permutation.end(), permutationt.begin(), permutationt.end());
     }
+
+    /// @brief Normalize noise value from [-1,1] to [0,1]
+    /// @param point Input coordinate
+    /// @return Normalized noise value in [0,1] range
+    /// @note Useful for texture generation; changes affect output range
+    float normalizedNoise(const Vector2f& point) {
+        return (permute(point) + 1.0f) * 0.5f;
+    }
+
+    /// @brief Normalize 3D noise value from [-1,1] to [0,1]
+    /// @param point Input coordinate
+    /// @return Normalized noise value in [0,1] range
+    float normalizedNoise(const Vector3f& point) {
+        return (permute(point) + 1.0f) * 0.5f;
+    }
+
+    /// @brief Map value from one range to another
+    /// @param value Input value
+    /// @param inMin Original range minimum
+    /// @param inMax Original range maximum
+    /// @param outMin Target range minimum
+    /// @param outMax Target range maximum
+    /// @return Value mapped to new range
+    /// @note Useful for post-processing; changes affect output scaling
+    float mapRange(float value, float inMin, float inMax, float outMin, float outMax) {
+        return (value - inMin) * (outMax - outMin) / (inMax - inMin) + outMin;
+    }
+
+    /// @brief Blend two noise values
+    /// @param noise1 First noise value
+    /// @param noise2 Second noise value
+    /// @param blendFactor Blending factor [0,1]
+    /// @return Blended noise value
+    /// @note Changes affect multi-layer noise combinations
+    float blendNoises(float noise1, float noise2, float blendFactor) {
+        return lerp(blendFactor, noise1, noise2);
+    }
+
+    /// @brief Add two noise values with clamping
+    /// @param noise1 First noise value
+    /// @param noise2 Second noise value
+    /// @return Sum clamped to [-1,1]
+    /// @note Clamping prevents overflow; changes affect combined noise magnitude
+    float addNoises(float noise1, float noise2) {
+        return std::clamp(noise1 + noise2, -1.0f, 1.0f);
+    }
+
+    /// @brief Multiply two noise values
+    /// @param noise1 First noise value
+    /// @param noise2 Second noise value
+    /// @return Product of noise values
+    /// @note Creates modulation effects; changes affect combined noise character
+    float multiplyNoises(float noise1, float noise2) {
+        return noise1 * noise2;
+    }
+
+    /// @brief Hash function for 2D coordinates
+    /// @param x X coordinate integer
+    /// @param y Y coordinate integer
+    /// @return Hash value in [-1,1] range
+    /// @note Core of value noise; changes affect random distribution
+    float hash(int x, int y) {
+        return (permutation[(x + permutation[y & 255]) & 255] / 255.0f) * 2.0f - 1.0f;
+    }
+    
+    /// @brief Hash function for 3D coordinates
+    /// @param x X coordinate integer
+    /// @param y Y coordinate integer
+    /// @param z Z coordinate integer
+    /// @return Hash value in [-1,1] range
+    /// @note 3D version of hash function
+    float hash(int x, int y, int z) {
+        return (permutation[(z + permutation[(y + permutation[x & 255]) & 255]) & 255] / 255.0f) * 2.0f - 1.0f;
+    }
+
+    /// @brief Pseudo-random vector for Worley noise (2D)
+    Vector2f hashVector(const Vector2f& gridPoint) {
+        int x = (int)gridPoint.x() & 255;
+        int y = (int)gridPoint.y() & 255;
+        // Generate pseudo-random float [0,1] for x and y offsets
+        float hx = permutation[(x + permutation[y]) & 255] / 255.0f;
+        float hy = permutation[(y + permutation[(x + 1) & 255]) & 255] / 255.0f;
+        return Vector2f(hx, hy);
+    }
+
+    /// @brief Pseudo-random vector for Worley noise (3D)
+    Vector3f hashVector(const Vector3f& gridPoint) {
+        int x = (int)gridPoint.x() & 255;
+        int y = (int)gridPoint.y() & 255;
+        int z = (int)gridPoint.z() & 255;
+        
+        int h_xy = permutation[(x + permutation[y]) & 255];
+        float hx = permutation[(h_xy + z) & 255] / 255.0f;
+        float hy = permutation[(h_xy + permutation[(z + 1) & 255]) & 255] / 255.0f;
+        float hz = permutation[(permutation[(x+1)&255] + permutation[(y+1)&255] + z) & 255] / 255.0f;
+        
+        return Vector3f(hx, hy, hz);
+    }
+
 public:
+    /// @brief Default constructor with random seed
+    /// @note Uses random_device for seed; different runs produce different noise
     PNoise2() : rng(std::random_device{}()) {
         initializePermutation();
     }
     
+    /// @brief Constructor with specified seed
+    /// @param seed Random seed value
+    /// @note Same seed produces identical noise patterns across runs
     PNoise2(unsigned int seed) : rng(seed) {
         initializePermutation();
     }
     
-    float permute(Vec2 point) {
+    /// @brief Generate 2D Perlin noise at given point
-        TIME_FUNCTION;
+    /// @param point 2D coordinate
-        float x = point.x;
+    /// @return Noise value in [-1,1] range
-        float y = point.y;
+    /// @note Core 2D noise function; changes affect all 2D noise outputs
+    float permute(const Vector2f& point) {
+        // TIME_FUNCTION;
+        float x = point.x();
+        float y = point.y();
         int X = (int)floor(x);
         int xmod = X & 255;
-        int Y = (int)floor(point.y);
+        int Y = (int)floor(y);
         int ymod = Y & 255;
-        float xf = point.x - X;
+        float xf = x - X;
-        float yf = point.y - Y;
+        float yf = y - Y;
 
-        Vec2 BL = Vec2(xf-0, yf-0);
+        Vector2f BL(xf-0, yf-0);
-        Vec2 BR = Vec2(xf-1, yf-0);
+        Vector2f BR(xf-1, yf-0);
-        Vec2 TL = Vec2(xf-0, yf-1);
+        Vector2f TL(xf-0, yf-1);
-        Vec2 TR = Vec2(xf-1, yf-1);
+        Vector2f TR(xf-1, yf-1);
 
         int vBL = permutation[permutation[xmod+0]+ymod+0];
         int vBR = permutation[permutation[xmod+1]+ymod+0];
         int vTL = permutation[permutation[xmod+0]+ymod+1];
         int vTR = permutation[permutation[xmod+1]+ymod+1];
         
-        float dBL = BL.dot(GetConstantVector(vBL));
-        float dBR = BR.dot(GetConstantVector(vBR));
-        float dTL = TL.dot(GetConstantVector(vTL));
-        float dTR = TR.dot(GetConstantVector(vTR));
-        
         float u = fade(xf);
         float v = fade(yf);
 
         float x1 = lerp(u, grad(vBL, xf, yf),     grad(vBR, xf - 1, yf));
         float x2 = lerp(u, grad(vTL, xf, yf - 1), grad(vTR, xf - 1, yf - 1));
         float retval = lerp(v, x1, x2);
-        //std::cout << "returning: " << retval << std::endl;
+        
         return retval;
     }
 
-    template<typename T>
+    /// @brief Generate 3D Perlin noise at given point
-    float permute(Vec3<T> point) {
+    /// @param point 3D coordinate
-        TIME_FUNCTION;
+    /// @return Noise value in [-1,1] range
-        int X = (int)floor(point.x) & 255;
+    float permute(const Vector3f& point) {
-        int Y = (int)floor(point.y) & 255;
+        // TIME_FUNCTION;
-        int Z = (int)floor(point.z) & 255;
+        float x = point.x();
-        float xf = point.x - X;
+        float y = point.y();
-        float yf = point.y - Y;
+        float z = point.z();
-        float zf = point.z - Z;
         
-        Vec3ui8 FBL = Vec3ui8(xf-0, yf-0, zf-0);
+        int X = (int)floor(x) & 255;
-        Vec3ui8 FBR = Vec3ui8(xf-1, yf-0, zf-0);
+        int Y = (int)floor(y) & 255;
-        Vec3ui8 FTL = Vec3ui8(xf-0, yf-1, zf-0);
+        int Z = (int)floor(z) & 255;
-        Vec3ui8 FTR = Vec3ui8(xf-1, yf-1, zf-0);
+        float xf = x - X;
+        float yf = y - Y;
+        float zf = z - Z;
 
-        Vec3ui8 RBL = Vec3ui8(xf-0, yf-0, zf-1);
+        // Distance vectors from corners
-        Vec3ui8 RBR = Vec3ui8(xf-1, yf-0, zf-1);
+        Vector3f FBL(xf-0, yf-0, zf-0);
-        Vec3ui8 RTL = Vec3ui8(xf-0, yf-1, zf-1);
+        Vector3f FBR(xf-1, yf-0, zf-0);
-        Vec3ui8 RTR = Vec3ui8(xf-1, yf-1, zf-1);
+        Vector3f FTL(xf-0, yf-1, zf-0);
+        Vector3f FTR(xf-1, yf-1, zf-0);
+
+        Vector3f RBL(xf-0, yf-0, zf-1);
+        Vector3f RBR(xf-1, yf-0, zf-1);
+        Vector3f RTL(xf-0, yf-1, zf-1);
+        Vector3f RTR(xf-1, yf-1, zf-1);
 
         int vFBL = permutation[permutation[permutation[Z+0]+X+0]+Y+0];
         int vFBR = permutation[permutation[permutation[Z+0]+X+1]+Y+0];
@@ -136,16 +298,6 @@ public:
         int vRTL = permutation[permutation[permutation[Z+1]+X+0]+Y+1];
         int vRTR = permutation[permutation[permutation[Z+1]+X+1]+Y+1];
         
-        float dFBL = FBL.dot(GetConstantVector3(vFBL));
-        float dFBR = FBR.dot(GetConstantVector3(vFBR));
-        float dFTL = FTL.dot(GetConstantVector3(vFTL));
-        float dFTR = FTR.dot(GetConstantVector3(vFTR));
-
-        float dRBL = RBL.dot(GetConstantVector3(vRBL));
-        float dRBR = RBR.dot(GetConstantVector3(vRBR));
-        float dRTL = RTL.dot(GetConstantVector3(vRTL));
-        float dRTR = RTR.dot(GetConstantVector3(vRTR));
-        
         float u = fade(xf);
         float v = fade(yf);
         float w = fade(zf);
@@ -160,10 +312,451 @@ public:
 
         float retval = lerp(w, y1, y2);
 
-        //std::cout << "returning: " << retval << std::endl;
         return retval;
     }
 
+    /// @brief Generate 2D value noise (simpler alternative to Perlin)
+    /// @param point 2D coordinate
+    /// @return Noise value in [-1,1] range
+    /// @note Different character than Perlin; changes affect value-based textures
+    float valueNoise(const Vector2f& point) {
+        int xi = (int)std::floor(point.x());
+        int yi = (int)std::floor(point.y());
+        
+        float tx = point.x() - xi;
+        float ty = point.y() - yi;
+        
+        int rx0 = xi & 255;
+        int rx1 = (xi + 1) & 255;
+        int ry0 = yi & 255;
+        int ry1 = (yi + 1) & 255;
+        
+        // Random values at corners
+        float c00 = hash(rx0, ry0);
+        float c10 = hash(rx1, ry0);
+        float c01 = hash(rx0, ry1);
+        float c11 = hash(rx1, ry1);
+        
+        // Interpolation
+        float sx = fade(tx);
+        float sy = fade(ty);
+        
+        float nx0 = lerp(sy, c00, c10);
+        float nx1 = lerp(sx, c01, c11);
+        
+        return lerp(nx0, nx1, sy);
+    }
+
+    /// @brief Generate 3D value noise
+    /// @param point 3D coordinate
+    /// @return Noise value in [-1,1] range
+    float valueNoise(const Vector3f& point) {
+        int xi = (int)std::floor(point.x());
+        int yi = (int)std::floor(point.y());
+        int zi = (int)std::floor(point.z());
+        
+        float tx = point.x() - xi;
+        float ty = point.y() - yi;
+        float tz = point.z() - zi;
+        
+        int rx0 = xi & 255;
+        int rx1 = (xi + 1) & 255;
+        int ry0 = yi & 255;
+        int ry1 = (yi + 1) & 255;
+        int rz0 = zi & 255;
+        int rz1 = (zi + 1) & 255;
+        
+        // Random values at corners
+        float c000 = hash(rx0, ry0, rz0);
+        float c100 = hash(rx1, ry0, rz0);
+        float c010 = hash(rx0, ry1, rz0);
+        float c110 = hash(rx1, ry1, rz0);
+        float c001 = hash(rx0, ry0, rz1);
+        float c101 = hash(rx1, ry0, rz1);
+        float c011 = hash(rx0, ry1, rz1);
+        float c111 = hash(rx1, ry1, rz1);
+        
+        // Interpolation
+        float sx = fade(tx);
+        float sy = fade(ty);
+        float sz = fade(tz);
+        
+        float nx00 = lerp(sx, c000, c100);
+        float nx10 = lerp(sx, c010, c110);
+        float nx01 = lerp(sx, c001, c101);
+        float nx11 = lerp(sx, c011, c111);
+        
+        float ny0 = lerp(sy, nx00, nx10);
+        float ny1 = lerp(sy, nx01, nx11);
+        
+        return lerp(sz, ny0, ny1);
+    }
+
+    /// @brief Generate RGBA color from 3D noise with offset channels
+    /// @param point 3D coordinate
+    /// @return Vector4f containing RGBA noise values
+    /// @note Each channel uses different offset; changes affect color patterns
+    Vector4f permuteColor(const Vector3f& point) {
+        // TIME_FUNCTION;
+        float noiseR = permute(point);
+        float noiseG = permute(Vector3f(point + Vector3f(100.0f, 100.0f, 100.0f)));
+        float noiseB = permute(Vector3f(point + Vector3f(200.0f, 200.0f, 200.0f)));
+        float noiseA = permute(Vector3f(point + Vector3f(300.0f, 300.0f, 300.0f)));
+        
+        float rNormalized = (noiseR + 1.0f) * 0.5f;
+        float gNormalized = (noiseG + 1.0f) * 0.5f;
+        float bNormalized = (noiseB + 1.0f) * 0.5f;
+        float aNormalized = (noiseA + 1.0f) * 0.5f;
+        
+        rNormalized = std::clamp(rNormalized, 0.0f, 1.0f);
+        gNormalized = std::clamp(gNormalized, 0.0f, 1.0f);
+        bNormalized = std::clamp(bNormalized, 0.0f, 1.0f);
+        aNormalized = std::clamp(aNormalized, 0.0f, 1.0f);
+        
+        return Vector4f(rNormalized, gNormalized, bNormalized, aNormalized);
+    }
+
+    /// @brief Generate fractal (octave) noise for natural-looking patterns
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @param persistence Amplitude multiplier per octave
+    /// @param lacunarity Frequency multiplier per octave
+    /// @return Combined noise value
+    /// @note Parameters control noise character: octaves=detail, persistence=roughness, lacunarity=frequency change
+    float fractalNoise(const Vector2f& point, int octaves, float persistence = 0.5, float lacunarity = 2.0) {
+        float frequency = 1.f;
+        float amplitude = 1.f;
+        float maxV = 0.f;
+        for (int i = 0; i < octaves; i++) {
+            Vector2f scaledPoint = point * frequency;
+            maxV += permute(scaledPoint) * amplitude;
+            amplitude *= persistence;
+            frequency *= lacunarity;
+        }
+
+        return maxV;
+    }
+
+    /// @brief Generate 3D fractal (octave) noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @param persistence Amplitude multiplier per octave
+    /// @param lacunarity Frequency multiplier per octave
+    /// @return Combined noise value
+    float fractalNoise(const Vector3f& point, int octaves, float persistence = 0.5, float lacunarity = 2.0) {
+        float frequency = 1.f;
+        float amplitude = 1.f;
+        float maxV = 0.f;
+        for (int i = 0; i < octaves; i++) {
+            Vector3f scaledPoint = point * frequency;
+            maxV += permute(scaledPoint) * amplitude;
+            amplitude *= persistence;
+            frequency *= lacunarity;
+        }
+
+        return maxV;
+    }
+
+    /// @brief Generate turbulence noise (absolute value of octaves)
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @return Turbulence noise value
+    /// @note Creates swirling, turbulent patterns; changes affect visual complexity
+    float turbulence(const Vector2f& point, int octaves) {
+        float value = 0.0f;
+        Vector2f tempPoint = point;
+        for (int i = 0; i < octaves; i++) {
+            value += std::abs(permute(tempPoint)) / (1 << i);
+            tempPoint *= 2.f;
+        }
+        return value;
+    }
+
+    /// @brief Generate 3D turbulence noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @return Turbulence noise value
+    float turbulence(const Vector3f& point, int octaves) {
+        float value = 0.0f;
+        Vector3f tempPoint = point;
+        
+        for (int i = 0; i < octaves; i++) {
+            value += std::abs(permute(tempPoint)) / (1 << i);
+            tempPoint *= 2.f;
+        }
+        return value;
+    }
+
+    /// @brief Generate ridged (ridged multifractal) noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @param offset Weighting offset for ridge formation
+    /// @return Ridged noise value
+    /// @note Creates sharp ridge-like patterns; offset controls ridge prominence
+    float ridgedNoise(const Vector2f& point, int octaves, float offset = 1.0f) {
+        float result = 0.f;
+        float weight = 1.f;
+        Vector2f p = point;
+        
+        for (int i = 0; i < octaves; i++) {
+            float signal = 1.f - std::abs(permute(p));
+            signal *= signal;
+            signal *= weight;
+            weight = signal * offset;
+            result += signal;
+            p *= 2.f;
+        }
+        
+        return result;
+    }
+
+    /// @brief Generate 3D ridged noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @param offset Weighting offset for ridge formation
+    /// @return Ridged noise value
+    float ridgedNoise(const Vector3f& point, int octaves, float offset = 1.0f) {
+        float result = 0.f;
+        float weight = 1.f;
+        Vector3f p = point;
+        
+        for (int i = 0; i < octaves; i++) {
+            float signal = 1.f - std::abs(permute(p));
+            signal *= signal;
+            signal *= weight;
+            weight = signal * offset;
+            result += signal;
+            p *= 2.f;
+        }
+        
+        return result;
+    }
+
+    /// @brief Generate billow (cloud-like) noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @return Billow noise value
+    /// @note Creates soft, billowy patterns like clouds
+    float billowNoise(const Vector2f& point, int octaves) {
+        float value = 0.0f;
+        float amplitude = 1.0f;
+        float frequency = 1.0f;
+        Vector2f scaledPoint = point * frequency;
+        for (int i = 0; i < octaves; i++) {
+            value += std::abs(permute(scaledPoint)) * amplitude;
+            amplitude *= 0.5f;
+            frequency *= 2.0f;
+        }
+        
+        return value;
+    }
+
+    /// @brief Generate 3D billow noise
+    /// @param point Input coordinate
+    /// @param octaves Number of noise layers
+    /// @return Billow noise value
+    float billowNoise(const Vector3f& point, int octaves) {
+        float value = 0.0f;
+        float amplitude = 1.0f;
+        float frequency = 1.0f;
+        Vector3f scaledPoint = point * frequency;
+        for (int i = 0; i < octaves; i++) {
+            value += std::abs(permute(scaledPoint)) * amplitude;
+            amplitude *= 0.5f;
+            frequency *= 2.0f;
+        }
+        
+        return value;
+    }
+
+    /// @brief Pure White Noise
+    /// @param point Input coordinate
+    /// @return Random value [-1, 1] based solely on integer coordinate hashing
+    float whiteNoise(const Vector2f& point) {
+        return hash((int)floor(point.x()), (int)floor(point.y()));
+    }
+
+    /// @brief Pure White Noise 3D
+    float whiteNoise(const Vector3f& point) {
+        return hash((int)floor(point.x()), (int)floor(point.y()), (int)floor(point.z()));
+    }
+
+    /// @brief Worley (Cellular) Noise 2D
+    /// @param point Input coordinate
+    /// @return Distance to the nearest feature point [0, 1+]
+    /// @note Used for stone, water caustics, biological cells
+    float worleyNoise(const Vector2f& point) {
+        Vector2f p = Vector2f(floor(point.x()), floor(point.y()));
+        Vector2f f = Vector2f(point.x() - p.x(), point.y() - p.y());
+
+        float minDist = 1.0f;
+
+        for (int y = -1; y <= 1; y++) {
+            for (int x = -1; x <= 1; x++) {
+                Vector2f neighbor(x, y);
+                Vector2f pointInCell = hashVector(Vector2f(p + neighbor));
+                Vector2f diff = neighbor + pointInCell - f;
+                
+                float dist = diff.norm();
+                if (dist < minDist) minDist = dist;
+            }
+        }
+        return minDist;
+    }
+
+    /// @brief Worley Noise 3D
+    /// @param point Input coordinate
+    /// @return Distance to nearest feature point
+    float worleyNoise(const Vector3f& point) {
+        Vector3f p = Vector3f(floor(point.x()), floor(point.y()), floor(point.z()));
+        Vector3f f = Vector3f(point.x() - p.x(), point.y() - p.y(), point.z() - p.z());
+
+        float minDist = 1.0f;
+
+        for (int z = -1; z <= 1; z++) {
+            for (int y = -1; y <= 1; y++) {
+                for (int x = -1; x <= 1; x++) {
+                    Vector3f neighbor(x, y, z);
+                    Vector3f pointInCell = hashVector(Vector3f(p + neighbor));
+                    Vector3f diff = neighbor + pointInCell - f;
+                    float dist = diff.norm();
+                    if (dist < minDist) minDist = dist;
+                }
+            }
+        }
+        return minDist;
+    }
+
+    /// @brief Voronoi Noise 2D (Cell ID)
+    /// @param point Input coordinate
+    /// @return Random hash value [-1, 1] unique to the closest cell
+    float voronoiNoise(const Vector2f& point) {
+        Vector2f p = Vector2f(floor(point.x()), floor(point.y()));
+        Vector2f f = Vector2f(point.x() - p.x(), point.y() - p.y());
+
+        float minDist = 100.0f;
+        Vector2f cellID = p;
+
+        for (int y = -1; y <= 1; y++) {
+            for (int x = -1; x <= 1; x++) {
+                Vector2f neighbor(x, y);
+                Vector2f pointInCell = hashVector(Vector2f(p + neighbor));
+                Vector2f diff = neighbor + pointInCell - f;
+                float dist = diff.squaredNorm();
+                if (dist < minDist) {
+                    minDist = dist;
+                    cellID = p + neighbor;
+                }
+            }
+        }
+        return hash((int)cellID.x(), (int)cellID.y());
+    }
+
+    /// @brief "Crystals" Noise (Variant of Worley)
+    /// @param point Input coordinate
+    /// @return F2 - F1 (Distance to 2nd closest - Distance to closest)
+    /// @note Creates cell-like borders, cracks, or crystal facets
+    float crystalNoise(const Vector2f& point) {
+        Vector2f p = Vector2f(floor(point.x()), floor(point.y()));
+        Vector2f f = Vector2f(point.x() - p.x(), point.y() - p.y());
+
+        float d1 = 10.0f;
+        float d2 = 10.0f;
+
+        for (int y = -1; y <= 1; y++) {
+            for (int x = -1; x <= 1; x++) {
+                Vector2f neighbor(x, y);
+                Vector2f pointInCell = hashVector(Vector2f(p + neighbor));
+                Vector2f diff = neighbor + pointInCell - f;
+                float dist = diff.norm();
+
+                if (dist < d1) {
+                    d2 = d1;
+                    d1 = dist;
+                } else if (dist < d2) {
+                    d2 = dist;
+                }
+            }
+        }
+        return d2 - d1;
+    }
+
+    /// @brief Domain Warping
+    /// @param point Input coordinate
+    /// @param strength Magnitude of the warp
+    /// @return Warped Perlin noise value
+    /// @note Calculates noise(p + noise(p)) for marble/fluid effects
+    float domainWarp(const Vector2f& point, float strength = 1.0f) {
+        Vector2f q(
+            permute(point),
+            permute(Vector2f(point + Vector2f(5.2f, 1.3f)))
+        );
+        return permute(Vector2f(point + q * strength));
+    }
+
+    /// @brief 3D Domain Warping
+    float domainWarp(const Vector3f& point, float strength = 1.0f) {
+        Vector3f q(
+            permute(point),
+            permute(Vector3f(point + Vector3f(5.2f, 1.3f, 2.8f))),
+            permute(Vector3f(point + Vector3f(1.1f, 8.4f, 5.5f)))
+        );
+        return permute(Vector3f(point + q * strength));
+    }
+
+    /// @brief Curl Noise 2D
+    /// @param point Input coordinate
+    /// @return Divergence-free vector field (useful for particle simulation)
+    /// @note Calculated via finite difference curl of a potential field
+    Vector2f curlNoise(const Vector2f& point) {
+        float n1 = permute(Vector2f(point + Vector2f(0, EPSILON)));
+        float n2 = permute(Vector2f(point + Vector2f(0, -EPSILON)));
+        float n3 = permute(Vector2f(point + Vector2f(EPSILON, 0)));
+        float n4 = permute(Vector2f(point + Vector2f(-EPSILON, 0)));
+
+        float dx = (n3 - n4) / (2.0f * EPSILON);
+        float dy = (n1 - n2) / (2.0f * EPSILON);
+        return Vector2f(dy, -dx).normalized();
+    }
+
+    /// @brief Curl Noise 3D
+    /// @param point Input coordinate
+    /// @return Divergence-free vector field
+    /// @note Uses 3 offsets of Perlin noise as Vector Potential
+    Vector3f curlNoise(const Vector3f& point) {
+        Vector3f dx(EPSILON, 0.0f, 0.0f);
+        Vector3f dy(0.0f, EPSILON, 0.0f);
+        Vector3f dz(0.0f, 0.0f, EPSILON);
+
+        auto potential = [&](const Vector3f& p) -> Vector3f {
+            return Vector3f(
+                permute(p),
+                permute(Vector3f(p + Vector3f(123.4f, 129.1f, 827.0f))), 
+                permute(Vector3f(p + Vector3f(492.5f, 991.2f, 351.4f))) 
+            );
+        };
+
+        Vector3f p_dx_p = potential(point + dx);
+        Vector3f p_dx_m = potential(point - dx);
+        Vector3f p_dy_p = potential(point + dy);
+        Vector3f p_dy_m = potential(point - dy);
+        Vector3f p_dz_p = potential(point + dz);
+        Vector3f p_dz_m = potential(point - dz);
+
+        // Finite difference
+        float dFz_dy = (p_dy_p.z() - p_dy_m.z()) / (2.0f * EPSILON);
+        float dFy_dz = (p_dz_p.y() - p_dz_m.y()) / (2.0f * EPSILON);
+        float dFx_dz = (p_dz_p.x() - p_dz_m.x()) / (2.0f * EPSILON);
+        float dFz_dx = (p_dx_p.z() - p_dx_m.z()) / (2.0f * EPSILON);
+        float dFy_dx = (p_dx_p.y() - p_dx_m.y()) / (2.0f * EPSILON);
+        float dFx_dy = (p_dy_p.x() - p_dy_m.x()) / (2.0f * EPSILON);
+
+        return Vector3f(
+            dFz_dy - dFy_dz,
+            dFx_dz - dFz_dx,
+            dFy_dx - dFx_dy
+        ).normalized();
+    }
 };
 
 #endif

util/noise2.hpp

@@ -1,693 +0,0 @@
-#ifndef NOISE2_HPP
-#define NOISE2_HPP
-
-#include "grid2.hpp"
-#include <cmath>
-#include <random>
-#include <functional>
-#include <algorithm>
-#include <array>
-#include <vector>
-#include <unordered_map>
-
-struct Grad { float x, y; };
-
-class Noise2 {
-public:
-    enum NoiseType {
-        PERLIN,
-        SIMPLEX,
-        VALUE,
-        WORLEY,
-        GABOR,
-        POISSON_DISK,
-        FRACTAL,
-        WAVELET,
-        GAUSSIAN,
-        CELLULAR
-    };
-    
-    enum GradientType {
-        HASH_BASED,
-        SIN_BASED,
-        DOT_BASED,
-        PRECOMPUTED
-    };
-
-    Noise2(uint32_t seed = 0, NoiseType type = PERLIN, GradientType gradType = PRECOMPUTED) : 
-            rng(seed), dist(0.0f, 1.0f), currentType(type), gradType(gradType),
-            currentSeed(seed), gaborFrequency(4.0f), gaborBandwidth(0.5f) 
-    {
-        initializePermutationTable(seed);
-        initializeFeaturePoints(64, seed); // Default 64 feature points
-        initializeWaveletCoefficients(32, seed); // 32x32 wavelet coefficients
-    }
-    
-    // Set random seed and reinitialize dependent structures
-    void setSeed(uint32_t seed) {
-        currentSeed = seed;
-        rng.seed(seed);
-        initializePermutationTable(seed);
-        initializeFeaturePoints(featurePoints.size(), seed);
-        initializeWaveletCoefficients(static_cast<int>(std::sqrt(waveletCoefficients.size())), seed);
-    }
-    
-    // Set noise type
-    void setNoiseType(NoiseType type) {
-        currentType = type;
-    }
-    
-    // Set gradient type
-    void setGradientType(GradientType type) {
-        gradType = type;
-    }
-    
-    // Main noise function that routes to the selected algorithm
-    float noise(float x, float y, int octaves = 1, float persistence = 0.5f, float lacunarity = 2.0f) {
-        switch (currentType) {
-            case PERLIN:
-                return perlinNoise(x, y, octaves, persistence, lacunarity);
-            case SIMPLEX:
-                return simplexNoise(x, y, octaves, persistence, lacunarity);
-            case VALUE:
-                return valueNoise(x, y, octaves, persistence, lacunarity);
-            case WORLEY:
-                return worleyNoise(x, y);
-            case GABOR:
-                return gaborNoise(x, y);
-            case POISSON_DISK:
-                return poissonDiskNoise(x, y);
-            case FRACTAL:
-                return fractalNoise(x, y, octaves, persistence, lacunarity);
-            case WAVELET:
-                return waveletNoise(x, y);
-            case GAUSSIAN:
-                return gaussianNoise(x, y);
-            case CELLULAR:
-                return cellularNoise(x, y);
-            default:
-                return perlinNoise(x, y, octaves, persistence, lacunarity);
-        }
-    }
-    
-    // Generate simple value noise
-    float valueNoise(float x, float y, int octaves = 1, float persistence = 0.5f, float lacunarity = 2.0f) {
-        float total = 0.0f;
-        float frequency = 1.0f;
-        float amplitude = 1.0f;
-        float maxValue = 0.0f;
-        
-        for (int i = 0; i < octaves; i++) {
-            total += rawNoise(x * frequency, y * frequency) * amplitude;
-            maxValue += amplitude;
-            amplitude *= persistence;
-            frequency *= lacunarity;
-        }
-        
-        return total / maxValue;
-    }
-    
-    // Generate Perlin-like noise
-    float perlinNoise(float x, float y, int octaves = 1, float persistence = 0.5f, float lacunarity = 2.0f) {
-        float total = 0.0f;
-        float frequency = 1.0f;
-        float amplitude = 1.0f;
-        float maxValue = 0.0f;
-        
-        for (int i = 0; i < octaves; i++) {
-            total += improvedNoise(x * frequency, y * frequency) * amplitude;
-            maxValue += amplitude;
-            amplitude *= persistence;
-            frequency *= lacunarity;
-        }
-        
-        return (total / maxValue + 1.0f) * 0.5f; // Normalize to [0,1]
-    }
-    
-    float simplexNoise(float x, float y, int octaves = 1, float persistence = 0.5f, float lacunarity = 2.0f) {
-        float total = 0.0f;
-        float frequency = 1.0f;
-        float amplitude = 1.0f;
-        float maxValue = 0.0f;
-        
-        for (int i = 0; i < octaves; i++) {
-            total += rawSimplexNoise(x * frequency, y * frequency) * amplitude;
-            maxValue += amplitude;
-            amplitude *= persistence;
-            frequency *= lacunarity;
-        }
-        
-        return (total / maxValue + 1.0f) * 0.5f;
-    }
-    
-    // Worley (cellular) noise
-    float worleyNoise(float x, float y) {
-        if (featurePoints.empty()) return 0.0f;
-        
-        // Find the closest and second closest feature points
-        float minDist1 = std::numeric_limits<float>::max();
-        float minDist2 = std::numeric_limits<float>::max();
-        
-        for (const auto& point : featurePoints) {
-            float dx = x - point.x;
-            float dy = y - point.y;
-            float dist = dx * dx + dy * dy; // Squared distance for performance
-            
-            if (dist < minDist1) {
-                minDist2 = minDist1;
-                minDist1 = dist;
-            } else if (dist < minDist2) {
-                minDist2 = dist;
-            }
-        }
-        
-        // Return distance to closest feature point (normalized)
-        return std::sqrt(minDist1);
-    }
-    
-    // Cellular noise variation
-    float cellularNoise(float x, float y) {
-        if (featurePoints.empty()) return 0.0f;
-        
-        float minDist1 = std::numeric_limits<float>::max();
-        float minDist2 = std::numeric_limits<float>::max();
-        
-        for (const auto& point : featurePoints) {
-            float dx = x - point.x;
-            float dy = y - point.y;
-            float dist = dx * dx + dy * dy;
-            
-            if (dist < minDist1) {
-                minDist2 = minDist1;
-                minDist1 = dist;
-            } else if (dist < minDist2) {
-                minDist2 = dist;
-            }
-        }
-        
-        // Cellular pattern: second closest minus closest
-        return std::sqrt(minDist2) - std::sqrt(minDist1);
-    }
-    
-    // Gabor noise
-    float gaborNoise(float x, float y) {
-        // Simplified Gabor noise - in practice this would be more complex
-        float gaussian = std::exp(-(x*x + y*y) / (2.0f * gaborBandwidth * gaborBandwidth));
-        float cosine = std::cos(2.0f * M_PI * gaborFrequency * (x + y));
-        
-        return gaussian * cosine;
-    }
-    
-    // Poisson disk noise
-    float poissonDiskNoise(float x, float y) {
-        // Sample Poisson disk distribution
-        // This is a simplified version - full implementation would use more sophisticated sampling
-        float minDist = std::numeric_limits<float>::max();
-        
-        for (const auto& point : featurePoints) {
-            float dx = x - point.x;
-            float dy = y - point.y;
-            float dist = std::sqrt(dx * dx + dy * dy);
-            minDist = std::min(minDist, dist);
-        }
-        
-        return 1.0f - std::min(minDist * 10.0f, 1.0f); // Invert and scale
-    }
-    
-    // Fractal noise (fractional Brownian motion)
-    float fractalNoise(float x, float y, int octaves = 8, float persistence = 0.5f, float lacunarity = 2.0f) {
-        float total = 0.0f;
-        float frequency = 1.0f;
-        float amplitude = 1.0f;
-        float maxValue = 0.0f;
-        
-        for (int i = 0; i < octaves; i++) {
-            total += improvedNoise(x * frequency, y * frequency) * amplitude;
-            maxValue += amplitude;
-            amplitude *= persistence;
-            frequency *= lacunarity;
-        }
-        
-        // Fractal noise often has wider range, so we don't normalize as strictly
-        return total;
-    }
-    
-    // Wavelet noise
-    float waveletNoise(float x, float y) {
-        // Simplified wavelet noise using precomputed coefficients
-        int ix = static_cast<int>(std::floor(x * 4)) % 32;
-        int iy = static_cast<int>(std::floor(y * 4)) % 32;
-        
-        if (ix < 0) ix += 32;
-        if (iy < 0) iy += 32;
-        
-        return waveletCoefficients[iy * 32 + ix];
-    }
-    
-    // Gaussian noise
-    float gaussianNoise(float x, float y) {
-        // Use coordinates to seed RNG for deterministic results
-        rng.seed(static_cast<uint32_t>(x * 1000 + y * 1000 + currentSeed));
-        
-        // Box-Muller transform for Gaussian distribution
-        float u1 = dist(rng);
-        float u2 = dist(rng);
-        float z0 = std::sqrt(-2.0f * std::log(u1)) * std::cos(2.0f * M_PI * u2);
-        
-        // Normalize to [0,1] range
-        return (z0 + 3.0f) / 6.0f; // Assuming 3 sigma covers most of the distribution
-    }
-    
-    // Generate a grayscale noise grid using current noise type
-    Grid2 generateGrayNoise(int width, int height, 
-                           float scale = 1.0f, 
-                           int octaves = 1, 
-                           float persistence = 0.5f, 
-                           uint32_t seed = 0,
-                           const Vec2& offset = Vec2(0, 0)) {
-        if (seed != 0) setSeed(seed);
-        
-        Grid2 grid(width * height);
-        
-        for (int y = 0; y < height; y++) {
-            for (int x = 0; x < width; x++) {
-                float nx = (x + offset.x) / width * scale;
-                float ny = (y + offset.y) / height * scale;
-                
-                float noiseValue = noise(nx, ny, octaves, persistence);
-                
-                // Convert to position and grayscale color
-                Vec2 position(x, y);
-                Vec4 color(noiseValue, noiseValue, noiseValue, 1.0f);
-                
-                grid.positions[y * width + x] = position;
-                grid.colors[y * width + x] = color;
-            }
-        }
-        
-        return grid;
-    }
-
-    float pascalTri(const float& a, const float& b) {
-        TIME_FUNCTION;
-        int result = 1;
-        for (int i = 0; i < b; ++i){
-            result *= (a - 1) / (i + 1);
-        }
-        return result;
-    }
-
-    float genSmooth(int N, float x) {
-        TIME_FUNCTION;
-        x = clamp(x, 0, 1);
-        float result = 0;
-        for (int n = 0; n <= N; ++n){
-            result += pascalTri(-N - 1, n) * pascalTri(2 * N + 1, N-1) * pow(x, N + n + 1);
-        }
-        return result;
-    }
-
-    float inverse_smoothstep(float x) {
-        TIME_FUNCTION;
-        return 0.5 - sin(asin(1.0 - 2.0 * x) / 3.0);
-    }
-    
-    // Generate multi-layered RGBA noise
-    Grid2 generateRGBANoise(int width, int height,
-                           const Vec4& scale = Vec4(1.0f, 1.0f, 1.0f, 1.0f),
-                           const Vec4& octaves = Vec4(1.0f, 1.0f, 1.0f, 1.0f),
-                           const Vec4& persistence = Vec4(0.5f, 0.5f, 0.5f, 0.5f),
-                           uint32_t seed = 0,
-                           const Vec2& offset = Vec2(0, 0)) {
-        if (seed != 0) setSeed(seed);
-        
-        Grid2 grid(width * height);
-        
-        for (int y = 0; y < height; y++) {
-            for (int x = 0; x < width; x++) {
-                float nx = (x + offset.x) / width;
-                float ny = (y + offset.y) / height;
-                
-                // Generate separate noise for each channel using current noise type
-                float r = noise(nx * scale.x, ny * scale.x, 
-                               static_cast<int>(octaves.x), persistence.x);
-                float g = noise(nx * scale.y, ny * scale.y, 
-                               static_cast<int>(octaves.y), persistence.y);
-                float b = noise(nx * scale.z, ny * scale.z, 
-                               static_cast<int>(octaves.z), persistence.z);
-                float a = noise(nx * scale.w, ny * scale.w, 
-                               static_cast<int>(octaves.w), persistence.w);
-                
-                Vec2 position(x, y);
-                Vec4 color(r, g, b, a);
-                
-                grid.positions[y * width + x] = position;
-                grid.colors[y * width + x] = color;
-            }
-        }
-        
-        return grid;
-    }
-    
-    // Generate terrain-like noise (useful for heightmaps)
-    Grid2 generateTerrainNoise(int width, int height, float scale = 1.0f, int octaves = 4,
-                              float persistence = 0.5f, uint32_t seed = 0, const Vec2& offset = Vec2(0, 0)) {
-        if (seed != 0) setSeed(seed);
-        
-        Grid2 grid(width * height);
-        
-        for (int y = 0; y < height; y++) {
-            for (int x = 0; x < width; x++) {
-                float nx = (x + offset.x) / width * scale;
-                float ny = (y + offset.y) / height * scale;
-                
-                // Use multiple octaves for more natural terrain
-                float heightValue = noise(nx, ny, octaves, persistence);
-                
-                // Apply some curve to make it more terrain-like
-                heightValue = std::pow(heightValue, 1.5f);
-                
-                Vec2 position(x, y);
-                Vec4 color(heightValue, heightValue, heightValue, 1.0f);
-                
-                grid.positions[y * width + x] = position;
-                grid.colors[y * width + x] = color;
-            }
-        }
-        
-        return grid;
-    }
-    
-    // Generate cloud-like noise
-    Grid2 generateCloudNoise(int width, int height,
-                            float scale = 2.0f,
-                            int octaves = 3,
-                            float persistence = 0.7f,
-                            uint32_t seed = 0,
-                            const Vec2& offset = Vec2(0, 0)) {
-        auto grid = generateGrayNoise(width, height, scale, octaves, persistence, seed, offset);
-        
-        // Apply soft threshold for cloud effect
-        for (auto& color : grid.colors) {
-            float value = color.x; // Assuming grayscale in red channel
-            // Soft threshold: values below 0.3 become 0, above 0.7 become 1, smooth in between
-            if (value < 0.3f) value = 0.0f;
-            else if (value > 0.7f) value = 1.0f;
-            else value = (value - 0.3f) / 0.4f; // Linear interpolation
-            
-            color = Vec4(value, value, value, 1.0f);
-        }
-        
-        return grid;
-    }
-    
-    // Generate specific noise type directly
-    Grid2 generateSpecificNoise(NoiseType type, int width, int height,
-                               float scale = 1.0f, int octaves = 1,
-                               float persistence = 0.5f, uint32_t seed = 0) {
-        NoiseType oldType = currentType;
-        currentType = type;
-        
-        auto grid = generateGrayNoise(width, height, scale, octaves, persistence, seed);
-        
-        currentType = oldType;
-        return grid;
-    }
-
-private:
-    std::mt19937 rng;
-    std::uniform_real_distribution<float> dist;
-    
-    // Precomputed gradient directions for 8 directions
-    static constexpr std::array<Grad, 8> grads = {
-        Grad{1.0f, 0.0f}, 
-        Grad{0.707f, 0.707f}, 
-        Grad{0.0f, 1.0f}, 
-        Grad{-0.707f, 0.707f},
-        Grad{-1.0f, 0.0f}, 
-        Grad{-0.707f, -0.707f}, 
-        Grad{0.0f, -1.0f}, 
-        Grad{0.707f, -0.707f}
-    };
-
-    NoiseType currentType;
-    GradientType gradType;
-    uint32_t currentSeed;
-    
-    // Permutation table for Simplex noise
-    std::array<int, 512> perm;
-    
-    // For Worley noise
-    std::vector<Vec2> featurePoints;
-    
-    // For Gabor noise
-    float gaborFrequency;
-    float gaborBandwidth;
-    
-    // For wavelet noise
-    std::vector<float> waveletCoefficients;
-    
-    // Initialize permutation table for Simplex noise
-    void initializePermutationTable(uint32_t seed) {
-        std::mt19937 localRng(seed);
-        std::uniform_int_distribution<int> intDist(0, 255);
-        
-        // Create initial permutation
-        std::array<int, 256> p;
-        for (int i = 0; i < 256; i++) {
-            p[i] = i;
-        }
-        
-        // Shuffle using Fisher-Yates
-        for (int i = 255; i > 0; i--) {
-            int j = intDist(localRng) % (i + 1);
-            std::swap(p[i], p[j]);
-        }
-        
-        // Duplicate for overflow
-        for (int i = 0; i < 512; i++) {
-            perm[i] = p[i & 255];
-        }
-    }
-    
-    // Initialize feature points for Worley/Poisson noise
-    void initializeFeaturePoints(int numPoints, uint32_t seed) {
-        std::mt19937 localRng(seed);
-        std::uniform_real_distribution<float> localDist(0.0f, 1.0f);
-        
-        featurePoints.clear();
-        featurePoints.reserve(numPoints);
-        
-        for (int i = 0; i < numPoints; i++) {
-            featurePoints.emplace_back(localDist(localRng), localDist(localRng));
-        }
-    }
-    
-    // Initialize wavelet coefficients
-    void initializeWaveletCoefficients(int size, uint32_t seed) {
-        std::mt19937 localRng(seed);
-        std::uniform_real_distribution<float> localDist(-1.0f, 1.0f);
-        
-        waveletCoefficients.resize(size * size);
-        for (int i = 0; i < size * size; i++) {
-            waveletCoefficients[i] = (localDist(localRng) + 1.0f) * 0.5f; // Normalize to [0,1]
-        }
-    }
-    
-    // Raw Simplex noise implementation
-    float rawSimplexNoise(float x, float y) {
-        // Skewing factors for 2D
-        const float F2 = 0.5f * (std::sqrt(3.0f) - 1.0f);
-        const float G2 = (3.0f - std::sqrt(3.0f)) / 6.0f;
-        
-        // Skew the input space
-        float s = (x + y) * F2;
-        int i = fastFloor(x + s);
-        int j = fastFloor(y + s);
-        
-        float t = (i + j) * G2;
-        float X0 = i - t;
-        float Y0 = j - t;
-        float x0 = x - X0;
-        float y0 = y - Y0;
-        
-        // Determine which simplex we're in
-        int i1, j1;
-        if (x0 > y0) {
-            i1 = 1; j1 = 0;
-        } else {
-            i1 = 0; j1 = 1;
-        }
-        
-        // Calculate other corners
-        float x1 = x0 - i1 + G2;
-        float y1 = y0 - j1 + G2;
-        float x2 = x0 - 1.0f + 2.0f * G2;
-        float y2 = y0 - 1.0f + 2.0f * G2;
-        
-        // Calculate contributions from each corner
-        float n0, n1, n2;
-        float t0 = 0.5f - x0*x0 - y0*y0;
-        if (t0 < 0) n0 = 0.0f;
-        else {
-            t0 *= t0;
-            n0 = t0 * t0 * grad(perm[i + perm[j]], x0, y0);
-        }
-        
-        float t1 = 0.5f - x1*x1 - y1*y1;
-        if (t1 < 0) n1 = 0.0f;
-        else {
-            t1 *= t1;
-            n1 = t1 * t1 * grad(perm[i + i1 + perm[j + j1]], x1, y1);
-        }
-        
-        float t2 = 0.5f - x2*x2 - y2*y2;
-        if (t2 < 0) n2 = 0.0f;
-        else {
-            t2 *= t2;
-            n2 = t2 * t2 * grad(perm[i + 1 + perm[j + 1]], x2, y2);
-        }
-        
-        return 70.0f * (n0 + n1 + n2);
-    }
-    
-    // Fast floor function
-    int fastFloor(float x) {
-        int xi = static_cast<int>(x);
-        return x < xi ? xi - 1 : xi;
-    }
-    
-    // Gradient function for Simplex noise
-    float grad(int hash, float x, float y) {
-        int h = hash & 7;
-        float u = h < 4 ? x : y;
-        float v = h < 4 ? y : x;
-        return ((h & 1) ? -u : u) + ((h & 2) ? -2.0f * v : 2.0f * v);
-    }
-    
-    // Raw noise function (simple hash-based)
-    float rawNoise(float x, float y) {
-        // Simple hash function for deterministic noise
-        int xi = static_cast<int>(std::floor(x));
-        int yi = static_cast<int>(std::floor(y));
-        
-        // Use the RNG to generate consistent noise based on grid position
-        rng.seed(xi * 1619 + yi * 31337 + currentSeed);
-        return dist(rng);
-    }
-    
-    // Improved noise function (Perlin-like) using selected gradient type
-    float improvedNoise(float x, float y) {
-        // Integer part
-        int xi = static_cast<int>(std::floor(x));
-        int yi = static_cast<int>(std::floor(y));
-        
-        // Fractional part
-        float xf = x - xi;
-        float yf = y - yi;
-        
-        // Smooth interpolation
-        float u = fade(xf);
-        float v = fade(yf);
-        
-        // Gradient noise from corners using selected gradient calculation
-        float n00 = gradNoise(xi, yi, xf, yf);
-        float n01 = gradNoise(xi, yi + 1, xf, yf - 1);
-        float n10 = gradNoise(xi + 1, yi, xf - 1, yf);
-        float n11 = gradNoise(xi + 1, yi + 1, xf - 1, yf - 1);
-        
-        // Bilinear interpolation
-        float x1 = lerp(n00, n10, u);
-        float x2 = lerp(n01, n11, u);
-        return lerp(x1, x2, v);
-    }
-    
-    // Gradient noise function using selected gradient type
-    float gradNoise(int xi, int yi, float xf, float yf) {
-        switch (gradType) {
-            case HASH_BASED:
-                return hashGradNoise(xi, yi, xf, yf);
-            case SIN_BASED:
-                return sinGradNoise(xi, yi, xf, yf);
-            case DOT_BASED:
-                return dotGradNoise(xi, yi, xf, yf);
-            case PRECOMPUTED:
-            default:
-                return precomputedGradNoise(xi, yi, xf, yf);
-        }
-    }
-    
-    // Fast gradient noise function using precomputed gradient directions
-    float precomputedGradNoise(int xi, int yi, float xf, float yf) {
-        // Generate deterministic hash from integer coordinates
-        int hash = (xi * 1619 + yi * 31337 + currentSeed);
-        
-        // Use hash to select from 8 precomputed gradient directions
-        int gradIndex = hash & 7; // 8 directions (0-7)
-        
-        // Dot product between distance vector and gradient
-        return xf * grads[gradIndex].x + yf * grads[gradIndex].y;
-    }
-    
-    // Hash-based gradient noise
-    float hashGradNoise(int xi, int yi, float xf, float yf) {
-        // Generate hash from coordinates
-        uint32_t hash = (xi * 1619 + yi * 31337 + currentSeed);
-        
-        // Use hash to generate gradient angle
-        hash = (hash << 13) ^ hash;
-        hash = (hash * (hash * hash * 15731 + 789221) + 1376312589);
-        float angle = (hash & 0xFFFF) / 65535.0f * 2.0f * M_PI;
-        
-        // Gradient vector
-        float gx = std::cos(angle);
-        float gy = std::sin(angle);
-        
-        // Dot product
-        return xf * gx + yf * gy;
-    }
-    
-    // Sine-based gradient noise
-    float sinGradNoise(int xi, int yi, float xf, float yf) {
-        // Use sine of coordinates to generate gradient
-        float angle = std::sin(xi * 12.9898f + yi * 78.233f + currentSeed) * 43758.5453f;
-        angle = angle - std::floor(angle); // Fractional part
-        angle *= 2.0f * M_PI;
-        
-        float gx = std::cos(angle);
-        float gy = std::sin(angle);
-        
-        return xf * gx + yf * gy;
-    }
-    
-    // Dot product based gradient noise
-    float dotGradNoise(int xi, int yi, float xf, float yf) {
-        // Simple dot product with random vector based on coordinates
-        float random = std::sin(xi * 127.1f + yi * 311.7f) * 43758.5453123f;
-        random = random - std::floor(random);
-        
-        Vec2 grad(std::cos(random * 2.0f * M_PI), std::sin(random * 2.0f * M_PI));
-        Vec2 dist(xf, yf);
-        
-        return grad.dot(dist);
-    }
-    
-    // Fade function for smooth interpolation
-    float fade(float t) {
-        return t * t * t * (t * (t * 6 - 15) + 10);
-    }
-    
-    // Linear interpolation
-    float lerp(float a, float b, float t) {
-        return a + t * (b - a);
-    }
-    
-    float clamp(float x, float lowerlimit = 0.0f, float upperlimit = 1.0f) {
-        TIME_FUNCTION;
-        if (x < lowerlimit) return lowerlimit;
-        if (x > upperlimit) return upperlimit;
-        return x;
-    }
-};
-
-#endif

util/output/bmpwriter.hpp

@@ -7,7 +7,7 @@
 #include <string>
 #include <algorithm>
 #include <filesystem>
-#include "../vectorlogic/vec3.hpp"
+//#include "../vectorlogic/vec3.hpp"
 #include "frame.hpp"
 
 class BMPWriter {
@@ -51,40 +51,40 @@ private:
 public:
     // Save a 2D vector of Vec3ui8 (RGB) colors as BMP
     // Vec3ui8 components: x = red, y = green, z = blue (values in range [0,1])
-    static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels) {
+    // static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels) {
-        if (pixels.empty() || pixels[0].empty()) {
+    //     if (pixels.empty() || pixels[0].empty()) {
-            return false;
+    //         return false;
-        }
+    //     }
         
-        int height = static_cast<int>(pixels.size());
+    //     int height = static_cast<int>(pixels.size());
-        int width = static_cast<int>(pixels[0].size());
+    //     int width = static_cast<int>(pixels[0].size());
         
-        // Validate that all rows have the same width
+    //     // Validate that all rows have the same width
-        for (const auto& row : pixels) {
+    //     for (const auto& row : pixels) {
-            if (row.size() != width) {
+    //         if (row.size() != width) {
-                return false;
+    //             return false;
-            }
+    //         }
-        }
+    //     }
         
-        return saveBMP(filename, pixels, width, height);
+    //     return saveBMP(filename, pixels, width, height);
-    }
+    // }
     
-    // Alternative interface with width/height and flat vector (row-major order)
+    // // Alternative interface with width/height and flat vector (row-major order)
-    static bool saveBMP(const std::string& filename, const std::vector<Vec3ui8>& pixels, int width, int height) {
+    // static bool saveBMP(const std::string& filename, const std::vector<Vec3ui8>& pixels, int width, int height) {
-        if (pixels.size() != width * height) {
+    //     if (pixels.size() != width * height) {
-            return false;
+    //         return false;
-        }
+    //     }
         
-        // Convert to 2D vector format
+    //     // Convert to 2D vector format
-        std::vector<std::vector<Vec3ui8>> pixels2D(height, std::vector<Vec3ui8>(width));
+    //     std::vector<std::vector<Vec3ui8>> pixels2D(height, std::vector<Vec3ui8>(width));
-        for (int y = 0; y < height; ++y) {
+    //     for (int y = 0; y < height; ++y) {
-            for (int x = 0; x < width; ++x) {
+    //         for (int x = 0; x < width; ++x) {
-                pixels2D[y][x] = pixels[y * width + x];
+    //             pixels2D[y][x] = pixels[y * width + x];
-            }
+    //         }
-        }
+    //     }
         
-        return saveBMP(filename, pixels2D, width, height);
+    //     return saveBMP(filename, pixels2D, width, height);
-    }
+    // }
     
     // Save from 1D vector of uint8_t pixels (BGR order: pixels[i]=b, pixels[i+1]=g, pixels[i+2]=r)
     static bool saveBMP(const std::string& filename, const std::vector<uint8_t>& pixels, int width, int height) {
@@ -133,9 +133,9 @@ public:
                 
                 // Input is already BGR: pixels[i]=b, pixels[i+1]=g, pixels[i+2]=r
                 // So we can copy directly
-                row[dstOffset] = srcRow[srcOffset];     // B
+                row[dstOffset + 0] = srcRow[srcOffset + 2]; // B
                 row[dstOffset + 1] = srcRow[srcOffset + 1]; // G
-                row[dstOffset + 2] = srcRow[srcOffset + 2]; // R
+                row[dstOffset + 2] = srcRow[srcOffset + 0]; // R
             }
             file.write(reinterpret_cast<const char*>(row.data()), rowSize);
         }
@@ -143,7 +143,7 @@ public:
         return true;
     }
     
-    static bool saveBMP(const std::string& filename, frame& frame) {
+    static bool saveBMP(const std::string& filename, const frame& frame) {
         if (frame.colorFormat == frame::colormap::RGB) {
             return saveBMP(filename, frame.getData(), frame.getWidth(), frame.getHeight());
         } else if (frame.colorFormat == frame::colormap::RGBA) {
@@ -157,53 +157,53 @@ public:
     }
 
 private:
-    static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels, int width, int height) {
+    // static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels, int width, int height) {
-        // Create directory if needed
+    //     // Create directory if needed
-        if (!createDirectoryIfNeeded(filename)) {
+    //     if (!createDirectoryIfNeeded(filename)) {
-            return false;
+    //         return false;
-        }
+    //     }
         
-        BMPHeader header;
+    //     BMPHeader header;
-        BMPInfoHeader infoHeader;
+    //     BMPInfoHeader infoHeader;
         
-        int rowSize = (width * 3 + 3) & ~3; // 24-bit, padded to 4 bytes
+    //     int rowSize = (width * 3 + 3) & ~3; // 24-bit, padded to 4 bytes
-        int imageSize = rowSize * height;
+    //     int imageSize = rowSize * height;
         
-        header.fileSize = sizeof(BMPHeader) + sizeof(BMPInfoHeader) + imageSize;
+    //     header.fileSize = sizeof(BMPHeader) + sizeof(BMPInfoHeader) + imageSize;
-        infoHeader.width = width;
+    //     infoHeader.width = width;
-        infoHeader.height = height;
+    //     infoHeader.height = height;
-        infoHeader.imageSize = imageSize;
+    //     infoHeader.imageSize = imageSize;
         
-        std::ofstream file(filename, std::ios::binary);
+    //     std::ofstream file(filename, std::ios::binary);
-        if (!file) {
+    //     if (!file) {
-            return false;
+    //         return false;
-        }
+    //     }
         
-        file.write(reinterpret_cast<const char*>(&header), sizeof(header));
+    //     file.write(reinterpret_cast<const char*>(&header), sizeof(header));
-        file.write(reinterpret_cast<const char*>(&infoHeader), sizeof(infoHeader));
+    //     file.write(reinterpret_cast<const char*>(&infoHeader), sizeof(infoHeader));
         
-        // Write pixel data (BMP stores pixels bottom-to-top)
+    //     // Write pixel data (BMP stores pixels bottom-to-top)
-        std::vector<uint8_t> row(rowSize, 0);
+    //     std::vector<uint8_t> row(rowSize, 0);
-        for (int y = height - 1; y >= 0; --y) {
+    //     for (int y = height - 1; y >= 0; --y) {
-            for (int x = 0; x < width; ++x) {
+    //         for (int x = 0; x < width; ++x) {
-                const Vec3ui8& color = pixels[y][x];
+    //             const Vec3ui8& color = pixels[y][x];
                 
-                // Convert from [0,1] float to [0,255] uint8_t
+    //             // Convert from [0,1] float to [0,255] uint8_t
-                uint8_t r = static_cast<uint8_t>(std::clamp(color.x * 255.0f, 0.0f, 255.0f));
+    //             uint8_t r = static_cast<uint8_t>(std::clamp(color.x * 255.0f, 0.0f, 255.0f));
-                uint8_t g = static_cast<uint8_t>(std::clamp(color.y * 255.0f, 0.0f, 255.0f));
+    //             uint8_t g = static_cast<uint8_t>(std::clamp(color.y * 255.0f, 0.0f, 255.0f));
-                uint8_t b = static_cast<uint8_t>(std::clamp(color.z * 255.0f, 0.0f, 255.0f));
+    //             uint8_t b = static_cast<uint8_t>(std::clamp(color.z * 255.0f, 0.0f, 255.0f));
                 
-                // BMP is BGR order
+    //             // BMP is BGR order
-                int pixelOffset = x * 3;
+    //             int pixelOffset = x * 3;
-                row[pixelOffset] = b;
+    //             row[pixelOffset] = b;
-                row[pixelOffset + 1] = g;
+    //             row[pixelOffset + 1] = g;
-                row[pixelOffset + 2] = r;
+    //             row[pixelOffset + 2] = r;
-            }
+    //         }
-            file.write(reinterpret_cast<const char*>(row.data()), rowSize);
+    //         file.write(reinterpret_cast<const char*>(row.data()), rowSize);
-        }
+    //     }
         
-        return true;
+    //     return true;
-    }
+    // }
     
     static std::vector<uint8_t> convertRGBAtoRGB(const std::vector<uint8_t>& rgba) {
         std::vector<uint8_t> rgb;

util/output/frame.hpp

@@ -15,6 +15,8 @@
 #include <future>
 #include <mutex>
 #include <atomic>
+#include <cmath>
+#include <iomanip>
 #include "../timing_decorator.hpp"
 
 class frame {
@@ -26,7 +28,6 @@ private:
     size_t sourceSize = 0;
     size_t width = 0;
     size_t height = 0;
-    
 public:
     enum class colormap {
         RGB,
@@ -45,43 +46,287 @@ public:
         RAW
     };
 
+    enum class interpolation {
+        NEAREST,
+        BILINEAR,
+        AREA,
+        LANCZOS4
+    };
+private:
+    size_t getChannels(colormap fmt) const {
+        switch (fmt) {
+            case colormap::RGBA: return 4;
+            case colormap::BGR: return 3;
+            case colormap::BGRA: return 4;
+            case colormap::B: return 1;
+            case colormap::RGB: default: return 3;
+        }
+    }
+
+    void resetState(size_t newSize) {
+        cformat = compresstype::RAW;
+        _compressedData.clear();
+        _compressedData.shrink_to_fit();
+        overheadmap.clear();
+        sourceSize = newSize;
+    }
+    
+    float rgbToGrayscale(float r, float g, float b) const {
+        return 0.2126f * r + 0.7152f * g + 0.0722f * b;
+    }
+public:
     colormap colorFormat = colormap::RGB;
     compresstype cformat = compresstype::RAW;
 
-    const size_t& getWidth() {
+    const size_t& getWidth() const {
         return width;
     }
     
-    const size_t& getHeight() {
+    const size_t& getHeight() const {
         return height;
     }
     frame() {};
     frame(size_t w, size_t h, colormap format = colormap::RGB) 
         : width(w), height(h), colorFormat(format), cformat(compresstype::RAW) {
-        size_t channels = 3;
+        _data.resize(width * height * getChannels(format));
-        switch (format) {
-            case colormap::RGBA: channels = 4; break;
-            case colormap::BGR: channels = 3; break;
-            case colormap::BGRA: channels = 4; break;
-            case colormap::B: channels = 1; break;
-            default: channels = 3; break;
-        }
-        _data.resize(width * height * channels);
     }
 
     void setData(const std::vector<uint8_t>& data) {
         _data = data;
-        cformat = compresstype::RAW;
+        resetState(data.size());
-        _compressedData.clear();
+    }
-        _compressedData.shrink_to_fit();
+
-        overheadmap.clear();
+    void setData(const std::vector<uint8_t>& inputData, colormap inputFormat) {
-        sourceSize = data.size();
+        if (inputFormat == colorFormat) {
+            setData(inputData);
+            return;
+        }
+
+        size_t srcChannels = getChannels(inputFormat);
+        size_t dstChannels = getChannels(colorFormat);
+        size_t numPixels = width * height;
+
+        if (inputData.size() != numPixels * srcChannels) {
+            throw std::runtime_error("Input data size does not match frame dimensions for the specified format.");
+        }
+
+        std::vector<uint8_t> newData;
+        newData.reserve(numPixels * dstChannels);
+
+        for (size_t i = 0; i < numPixels; ++i) {
+            size_t px = i * srcChannels;
+            uint8_t r = 0, g = 0, b = 0, a = 255;
+
+            switch (inputFormat) {
+                case colormap::RGB: {
+                    r = inputData[px];
+                    g = inputData[px+1];
+                    b = inputData[px+2];
+                    break;
+                }  
+                case colormap::RGBA:
+                    r = inputData[px];
+                    g = inputData[px+1];
+                    b = inputData[px+2];
+                    a = inputData[px+3];
+                    break;
+                case colormap::BGR:
+                    b = inputData[px];
+                    g = inputData[px+1];
+                    r = inputData[px+2];
+                    break;
+                case colormap::BGRA:
+                    b = inputData[px];
+                    g = inputData[px+1];
+                    r = inputData[px+2];
+                    a = inputData[px+3];
+                    break;
+                case colormap::B:
+                    r = g = b = inputData[px];
+                    break;
+            }
+
+            switch (colorFormat) {
+                case colormap::RGB:
+                    newData.push_back(r);
+                    newData.push_back(g);
+                    newData.push_back(b);
+                    break;
+                case colormap::RGBA:
+                    newData.push_back(r);
+                    newData.push_back(g);
+                    newData.push_back(b);
+                    newData.push_back(a);
+                    break;
+                case colormap::BGR:
+                    newData.push_back(b);
+                    newData.push_back(g);
+                    newData.push_back(r);
+                    break;
+                case colormap::BGRA:
+                    newData.push_back(b);
+                    newData.push_back(g);
+                    newData.push_back(r);
+                    newData.push_back(a);
+                    break;
+                case colormap::B:    
+                    newData.push_back(rgbToGrayscale(r, g, b));
+                    break;
+            }
+        }
+
+        _data = std::move(newData);
+        resetState(_data.size());
+    }
+
+    void setData(const std::vector<float>& inputData) {
+        size_t channels = getChannels(colorFormat);
+        
+        if (inputData.size() != width * height * channels) {
+            throw std::runtime_error("Input float data size does not match frame dimensions.");
+        }
+
+        std::vector<uint8_t> newData;
+        newData.reserve(inputData.size());
+
+        for (float val : inputData) {
+            // Clamp between 0.0 and 1.0, scale to 255
+            float v = std::max(0.0f, std::min(1.0f, val));
+            newData.push_back(static_cast<uint8_t>(v * 255.0f));
+        }
+
+        _data = std::move(newData);
+        resetState(_data.size());
+    }
+
+    void setData(const std::vector<float>& inputData, colormap inputFormat) {
+        size_t srcChannels = getChannels(inputFormat);
+        size_t dstChannels = getChannels(colorFormat);
+        size_t numPixels = width * height;
+
+        if (inputData.size() != numPixels * srcChannels) {
+            throw std::runtime_error("Input float data size does not match frame dimensions.");
+        }
+
+        std::vector<uint8_t> newData;
+        newData.reserve(numPixels * dstChannels);
+
+        auto floatToByte = [](float f) -> uint8_t {
+            return static_cast<uint8_t>(std::max(0.0f, std::min(1.0f, f)) * 255.0f);
+        };
+
+        for (size_t i = 0; i < numPixels; ++i) {
+            size_t px = i * srcChannels;
+            uint8_t r = 0, g = 0, b = 0, a = 255;
+
+            // Extract and convert floats to bytes
+            switch (inputFormat) {
+                case colormap::RGB:  
+                    r = floatToByte(inputData[px]);
+                    g = floatToByte(inputData[px+1]);
+                    b = floatToByte(inputData[px+2]);
+                    break;
+                case colormap::RGBA: 
+                    r = floatToByte(inputData[px]);
+                    g = floatToByte(inputData[px+1]);
+                    b = floatToByte(inputData[px+2]);
+                    a = floatToByte(inputData[px+3]);
+                    break;
+                case colormap::BGR:  
+                    b = floatToByte(inputData[px]);
+                    g = floatToByte(inputData[px+1]);
+                    r = floatToByte(inputData[px+2]);
+                    break;
+                case colormap::BGRA: 
+                    b = floatToByte(inputData[px]);
+                    g = floatToByte(inputData[px+1]);
+                    r = floatToByte(inputData[px+2]);
+                    a = floatToByte(inputData[px+3]);
+                    break;
+                case colormap::B:    
+                    r = g = b = floatToByte(inputData[px]);
+                    break;
+            }
+
+            switch (colorFormat) {
+                case colormap::RGB:
+                    newData.push_back(r);
+                    newData.push_back(g);
+                    newData.push_back(b);
+                    break;
+                case colormap::RGBA:
+                    newData.push_back(r);
+                    newData.push_back(g);
+                    newData.push_back(b);
+                    newData.push_back(a);
+                    break;
+                case colormap::BGR:
+                    newData.push_back(b);
+                    newData.push_back(g);
+                    newData.push_back(r);
+                    break;
+                case colormap::BGRA:
+                    newData.push_back(b);
+                    newData.push_back(g);
+                    newData.push_back(r);
+                    newData.push_back(a);
+                    break;
+                case colormap::B:    
+                    newData.push_back(rgbToGrayscale(r, g, b));
+                    break;
+            }
+        }
+
+        _data = std::move(newData);
+        resetState(_data.size());
     }
 
     const std::vector<uint8_t>& getData() const {
         return _data;
     }
     
+    std::vector<uint8_t> getPixel(size_t x, size_t y) const {
+        if (cformat != compresstype::RAW) {
+            throw std::runtime_error("Cannot get pixel data from a compressed frame. Decompress first.");
+        }
+        if (x >= width || y >= height) {
+            throw std::out_of_range("Pixel coordinates out of bounds.");
+        }
+
+        size_t channels = getChannels(colorFormat);
+        size_t index = (y * width + x) * channels;
+        
+        std::vector<uint8_t> pixel;
+        pixel.reserve(channels);
+
+        for (size_t i = 0; i < channels; ++i) {
+            pixel.push_back(_data[index + i]);
+        }
+        return pixel;
+    }
+
+    void setPixel(size_t x, size_t y, const std::vector<uint8_t>& values) {
+        if (cformat != compresstype::RAW) {
+            throw std::runtime_error("Cannot set pixel data on a compressed frame. Decompress first.");
+        }
+        if (x >= width || y >= height) {
+            throw std::out_of_range("Pixel coordinates out of bounds.");
+        }
+
+        size_t channels = getChannels(colorFormat);
+        if (values.size() != channels) {
+            throw std::invalid_argument("Input value count does not match frame channel count.");
+        }
+
+        size_t index = (y * width + x) * channels;
+        for (size_t i = 0; i < channels; ++i) {
+            _data[index + i] = values[i];
+        }
+        
+        // Since data changed, previous compression stats are invalid
+        resetState(_data.size());
+    }
+
     // Run-Length Encoding (RLE) compression
     frame& compressFrameRLE() {
         TIME_FUNCTION;
@@ -243,13 +488,27 @@ public:
     void printCompressionInfo() const {
         std::cout << "Compression Type: ";
         switch (cformat) {
-            case compresstype::RLE: std::cout << "RLE"; break;
+            case compresstype::RLE: 
-            case compresstype::DIFF: std::cout << "DIFF"; break;
+                std::cout << "RLE";
-            case compresstype::DIFFRLE: std::cout << "DIFF + RLE"; break;
+                break;
-            case compresstype::LZ78: std::cout << "LZ78 (kinda)"; break;
+            case compresstype::DIFF:
-            case compresstype::HUFFMAN: std::cout << "HUFFMAN"; break;
+                std::cout << "DIFF";
-            case compresstype::RAW: std::cout << "RAW (uncompressed)"; break;
+                break;
-            default: std::cout << "UNKNOWN"; break;
+            case compresstype::DIFFRLE:
+                std::cout << "DIFF + RLE";
+                break;
+            case compresstype::LZ78:
+                std::cout << "LZ78 (kinda)";
+                break;
+            case compresstype::HUFFMAN:
+                std::cout << "HUFFMAN";
+                break;
+            case compresstype::RAW:
+                std::cout << "RAW (uncompressed)";
+                break;
+            default:
+                std::cout << "UNKNOWN";
+                break;
         }
         std::cout << std::endl;
         
@@ -310,6 +569,35 @@ public:
         _data.shrink_to_fit();
     }
 
+    void resize(size_t newWidth, size_t newHeight, interpolation method = interpolation::NEAREST) {
+        TIME_FUNCTION;
+        if (cformat != compresstype::RAW) {
+            throw std::runtime_error("Cannot resize a compressed frame. Decompress first.");
+        }
+        if (newWidth == 0 || newHeight == 0) {
+            throw std::invalid_argument("Target dimensions must be non-zero.");
+        }
+        if (width == newWidth && height == newHeight) {
+            return;
+        }
+
+        size_t channels = getChannels(colorFormat);
+        std::vector<uint8_t> newData;
+        newData.resize(newWidth * newHeight * channels);
+
+        if (method == interpolation::NEAREST) {
+            resizeNearest(newData, newWidth, newHeight, channels);
+        } else if (method == interpolation::BILINEAR) {
+            resizeBilinear(newData, newWidth, newHeight, channels);
+        }
+
+        _data = std::move(newData);
+        width = newWidth;
+        height = newHeight;
+        
+        resetState(_data.size());
+    }
+
 private:
     std::vector<std::vector<uint8_t>> sortvecs(std::vector<std::vector<uint8_t>> source) {
         std::sort(source.begin(), source.end(), [](const std::vector<uint8_t> & a, const std::vector<uint8_t> & b) {return a.size() > b.size();});
@@ -501,21 +789,98 @@ private:
         throw std::logic_error("Function not yet implemented");
     }
 
+    void resizeNearest(std::vector<uint8_t>& dst, size_t newW, size_t newH, size_t channels) {
+        const double x_ratio = (double)width / newW;
+        const double y_ratio = (double)height / newH;
+
+        #pragma omp parallel for
+        for (size_t y = 0; y < newH; ++y) {
+            size_t srcY = static_cast<size_t>(std::floor(y * y_ratio));
+            if (srcY >= height) srcY = height - 1;
+            
+            size_t destOffsetBase = y * newW * channels;
+            size_t srcRowOffset = srcY * width * channels;
+
+            for (size_t x = 0; x < newW; ++x) {
+                size_t srcX = static_cast<size_t>(std::floor(x * x_ratio));
+                if (srcX >= width) srcX = width - 1;
+
+                size_t srcIndex = srcRowOffset + (srcX * channels);
+                size_t destIndex = destOffsetBase + (x * channels);
+
+                for (size_t c = 0; c < channels; ++c) {
+                    dst[destIndex + c] = _data[srcIndex + c];
+                }
+            }
+        }
+    }
+
+    void resizeBilinear(std::vector<uint8_t>& dst, size_t newW, size_t newH, size_t channels) {
+        const float x_ratio = (width > 1) ? static_cast<float>(width - 1) / (newW - 1) : 0;
+        const float y_ratio = (height > 1) ? static_cast<float>(height - 1) / (newH - 1) : 0;
+
+        for (size_t y = 0; y < newH; ++y) {
+            float srcY_f = y * y_ratio;
+            size_t y_l = static_cast<size_t>(srcY_f);
+            size_t y_h = (y_l + 1 < height) ? y_l + 1 : y_l;
+            float y_weight = srcY_f - y_l;
+            float y_inv = 1.0f - y_weight;
+
+            size_t destOffsetBase = y * newW * channels;
+
+            for (size_t x = 0; x < newW; ++x) {
+                float srcX_f = x * x_ratio;
+                size_t x_l = static_cast<size_t>(srcX_f);
+                size_t x_h = (x_l + 1 < width) ? x_l + 1 : x_l;
+                float x_weight = srcX_f - x_l;
+                float x_inv = 1.0f - x_weight;
+
+                size_t idx_TL = (y_l * width + x_l) * channels;
+                size_t idx_TR = (y_l * width + x_h) * channels;
+                size_t idx_BL = (y_h * width + x_l) * channels;
+                size_t idx_BR = (y_h * width + x_h) * channels;
+                size_t destIndex = destOffsetBase + (x * channels);
+
+                for (size_t c = 0; c < channels; ++c) {
+                    float val_TL = _data[idx_TL + c];
+                    float val_TR = _data[idx_TR + c];
+                    float val_BL = _data[idx_BL + c];
+                    float val_BR = _data[idx_BR + c];
+
+                    float top = val_TL * x_inv + val_TR * x_weight;
+                    float bottom = val_BL * x_inv + val_BR * x_weight;
+                    float result = top * y_inv + bottom * y_weight;
+                    dst[destIndex + c] = static_cast<uint8_t>(result);
+                }
+            }
+        }
+    }
 };
 
-
+inline std::ostream& operator<<(std::ostream& os, frame& f) {
-std::ostream& operator<<(std::ostream& os, frame& f) {
     os << "Frame[" << f.getWidth() << "x" << f.getHeight() << "] ";
     
     // Color format
     os << "Format: ";
     switch (f.colorFormat) {
-        case frame::colormap::RGB: os << "RGB"; break;
+        case frame::colormap::RGB:
-        case frame::colormap::RGBA: os << "RGBA"; break;
+            os << "RGB";
-        case frame::colormap::BGR: os << "BGR"; break;
+            break;
-        case frame::colormap::BGRA: os << "BGRA"; break;
+        case frame::colormap::RGBA:
-        case frame::colormap::B: os << "Grayscale"; break;
+            os << "RGBA";
-        default: os << "Unknown"; break;
+            break;
+        case frame::colormap::BGR:
+            os << "BGR";
+            break;
+        case frame::colormap::BGRA:
+            os << "BGRA";
+            break;
+        case frame::colormap::B: 
+            os << "Grayscale";
+            break;
+        default:
+            os << "Unknown";
+            break;
     }
     
     // Compression info

util/ray3.hpp

@@ -63,8 +63,11 @@ public:
         return crossProduct.length() / direction.length();
     }
     
-    // Transform ray by a 4x4 matrix (for perspective/affine transformations)
+    // Ray3 transform(const Mat4<T>& matrix) const {
-    Ray3 transform(const class Mat4& matrix) const;
+    //     Vec3<T> transformedOrigin = matrix.transformPoint(origin);
+    //     Vec3<T> transformedDirection = matrix.transformDirection(direction);
+    //     return Ray3<T>(transformedOrigin, transformedDirection.normalized());
+    // }
     
     std::string toString() const {
         return "Ray3(origin: " + origin.toString() + ", direction: " + direction.toString() + ")";
@@ -72,5 +75,6 @@ public:
 };
 
 using Ray3f = Ray3<float>;
+using Ray3T = Ray3<size_t>;
 
 #endif

util/sim/elementcontent.hpp

@@ -0,0 +1,383 @@
+#ifndef ELEMENTS
+#define ELEMENTS
+
+#include <array>
+
+struct BaseElementProps {
+    float density;           // kg/m^3
+    float meltingPoint;      // Kelvin
+    float boilingPoint;      // Kelvin
+    float specificHeat;      // J/(kg*K)
+    float electronegativity; // Pauling scale
+};
+
+static const std::array<BaseElementProps, 118> ELEMENT_DB = {{
+    // 1: Hydrogen
+    {0.08988f, 14.01f, 20.28f, 14304.0f, 2.20f},
+    // 2: Helium
+    {0.1785f, 0.95f, 4.22f, 5193.0f, 0.0f},  // No electronegativity, using 0
+    // 3: Lithium
+    {534.0f, 453.69f, 1560.0f, 3582.0f, 0.98f},
+    // 4: Beryllium
+    {1850.0f, 1560.0f, 2742.0f, 1825.0f, 1.57f},
+    // 5: Boron
+    {2340.0f, 2349.0f, 4200.0f, 1026.0f, 2.04f},
+    // 6: Carbon
+    {2267.0f, 4000.0f, 4300.0f, 709.0f, 2.55f},
+    // 7: Nitrogen
+    {1.2506f, 63.15f, 77.36f, 1040.0f, 3.04f},
+    // 8: Oxygen
+    {1.429f, 54.36f, 90.2f, 918.0f, 3.44f},
+    // 9: Fluorine
+    {1.696f, 53.53f, 85.03f, 824.0f, 3.98f},
+    // 10: Neon
+    {0.9002f, 24.56f, 27.07f, 1030.0f, 0.0f},  // No electronegativity
+    // 11: Sodium
+    {968.0f, 370.87f, 1156.0f, 1228.0f, 0.93f},
+    // 12: Magnesium
+    {1738.0f, 923.0f, 1363.0f, 1023.0f, 1.31f},
+    // 13: Aluminium
+    {2700.0f, 933.47f, 2792.0f, 897.0f, 1.61f},
+    // 14: Silicon
+    {2329.0f, 1687.0f, 3538.0f, 705.0f, 1.9f},
+    // 15: Phosphorus
+    {1823.0f, 317.3f, 550.0f, 769.0f, 2.19f},
+    // 16: Sulfur
+    {2070.0f, 388.36f, 717.87f, 710.0f, 2.58f},
+    // 17: Chlorine
+    {3.2f, 171.6f, 239.11f, 479.0f, 3.16f},
+    // 18: Argon
+    {1.784f, 83.8f, 87.3f, 520.0f, 0.0f},  // No electronegativity
+    // 19: Potassium
+    {890.0f, 336.53f, 1032.0f, 757.0f, 0.82f},
+    // 20: Calcium
+    {1550.0f, 1115.0f, 1757.0f, 647.0f, 1.0f},
+    // 21: Scandium
+    {2985.0f, 1814.0f, 3109.0f, 568.0f, 1.36f},
+    // 22: Titanium
+    {4506.0f, 1941.0f, 3560.0f, 523.0f, 1.54f},
+    // 23: Vanadium
+    {6110.0f, 2183.0f, 3680.0f, 489.0f, 1.63f},
+    // 24: Chromium
+    {7150.0f, 2180.0f, 2944.0f, 449.0f, 1.66f},
+    // 25: Manganese
+    {7210.0f, 1519.0f, 2334.0f, 479.0f, 1.55f},
+    // 26: Iron
+    {7874.0f, 1811.0f, 3134.0f, 449.0f, 1.83f},
+    // 27: Cobalt
+    {8900.0f, 1768.0f, 3200.0f, 421.0f, 1.88f},
+    // 28: Nickel
+    {8908.0f, 1728.0f, 3186.0f, 444.0f, 1.91f},
+    // 29: Copper
+    {8960.0f, 1357.77f, 2835.0f, 385.0f, 1.9f},
+    // 30: Zinc
+    {7140.0f, 692.88f, 1180.0f, 388.0f, 1.65f},
+    // 31: Gallium
+    {5910.0f, 302.9146f, 2673.0f, 371.0f, 1.81f},
+    // 32: Germanium
+    {5323.0f, 1211.4f, 3106.0f, 320.0f, 2.01f},
+    // 33: Arsenic
+    {5727.0f, 1090.0f, 887.0f, 329.0f, 2.18f},  // Sublimes at 887K
+    // 34: Selenium
+    {4810.0f, 453.0f, 958.0f, 321.0f, 2.55f},
+    // 35: Bromine
+    {3102.8f, 265.8f, 332.0f, 474.0f, 2.96f},
+    // 36: Krypton
+    {3.749f, 115.79f, 119.93f, 248.0f, 3.0f},
+    // 37: Rubidium
+    {1532.0f, 312.46f, 961.0f, 363.0f, 0.82f},
+    // 38: Strontium
+    {2640.0f, 1050.0f, 1655.0f, 301.0f, 0.95f},
+    // 39: Yttrium
+    {4472.0f, 1799.0f, 3609.0f, 298.0f, 1.22f},
+    // 40: Zirconium
+    {6520.0f, 2128.0f, 4682.0f, 278.0f, 1.33f},
+    // 41: Niobium
+    {8570.0f, 2750.0f, 5017.0f, 265.0f, 1.6f},
+    // 42: Molybdenum
+    {10280.0f, 2896.0f, 4912.0f, 251.0f, 2.16f},
+    // 43: Technetium
+    {11000.0f, 2430.0f, 4538.0f, 0.0f, 1.9f},  // No specific heat data
+    // 44: Ruthenium
+    {12450.0f, 2607.0f, 4423.0f, 238.0f, 2.2f},
+    // 45: Rhodium
+    {12410.0f, 2237.0f, 3968.0f, 243.0f, 2.28f},
+    // 46: Palladium
+    {12023.0f, 1828.05f, 3236.0f, 244.0f, 2.2f},
+    // 47: Silver
+    {10490.0f, 1234.93f, 2435.0f, 235.0f, 1.93f},
+    // 48: Cadmium
+    {8650.0f, 594.22f, 1040.0f, 232.0f, 1.69f},
+    // 49: Indium
+    {7310.0f, 429.75f, 2345.0f, 233.0f, 1.78f},
+    // 50: Tin
+    {7265.0f, 505.08f, 2875.0f, 228.0f, 1.96f},
+    // 51: Antimony
+    {6697.0f, 903.78f, 1860.0f, 207.0f, 2.05f},
+    // 52: Tellurium
+    {6240.0f, 722.66f, 1261.0f, 202.0f, 2.1f},
+    // 53: Iodine
+    {4933.0f, 386.85f, 457.4f, 214.0f, 2.66f},
+    // 54: Xenon
+    {5.894f, 161.4f, 165.03f, 158.0f, 2.6f},
+    // 55: Caesium
+    {1930.0f, 301.59f, 944.0f, 242.0f, 0.79f},
+    // 56: Barium
+    {3510.0f, 1000.0f, 2170.0f, 204.0f, 0.89f},
+    // 57: Lanthanum
+    {6162.0f, 1193.0f, 3737.0f, 195.0f, 1.1f},
+    // 58: Cerium
+    {6770.0f, 1068.0f, 3716.0f, 192.0f, 1.12f},
+    // 59: Praseodymium
+    {6770.0f, 1208.0f, 3793.0f, 193.0f, 1.13f},
+    // 60: Neodymium
+    {7010.0f, 1297.0f, 3347.0f, 190.0f, 1.14f},
+    // 61: Promethium
+    {7260.0f, 1315.0f, 3273.0f, 0.0f, 1.13f},  // No specific heat data
+    // 62: Samarium
+    {7520.0f, 1345.0f, 2067.0f, 197.0f, 1.17f},
+    // 63: Europium
+    {5244.0f, 1099.0f, 1802.0f, 182.0f, 1.2f},
+    // 64: Gadolinium
+    {7900.0f, 1585.0f, 3546.0f, 236.0f, 1.2f},
+    // 65: Terbium
+    {8230.0f, 1629.0f, 3503.0f, 182.0f, 1.2f},
+    // 66: Dysprosium
+    {8540.0f, 1680.0f, 2840.0f, 170.0f, 1.22f},
+    // 67: Holmium
+    {8790.0f, 1734.0f, 2993.0f, 165.0f, 1.23f},
+    // 68: Erbium
+    {9066.0f, 1802.0f, 3141.0f, 168.0f, 1.24f},
+    // 69: Thulium
+    {9320.0f, 1818.0f, 2223.0f, 160.0f, 1.25f},
+    // 70: Ytterbium
+    {6900.0f, 1097.0f, 1469.0f, 155.0f, 1.1f},
+    // 71: Lutetium
+    {9841.0f, 1925.0f, 3675.0f, 154.0f, 1.27f},
+    // 72: Hafnium
+    {13310.0f, 2506.0f, 4876.0f, 144.0f, 1.3f},
+    // 73: Tantalum
+    {16690.0f, 3290.0f, 5731.0f, 140.0f, 1.5f},
+    // 74: Tungsten
+    {19250.0f, 3695.0f, 6203.0f, 132.0f, 2.36f},
+    // 75: Rhenium
+    {21020.0f, 3459.0f, 5869.0f, 137.0f, 1.9f},
+    // 76: Osmium
+    {22590.0f, 3306.0f, 5285.0f, 130.0f, 2.2f},
+    // 77: Iridium
+    {22560.0f, 2719.0f, 4701.0f, 131.0f, 2.2f},
+    // 78: Platinum
+    {21450.0f, 2041.4f, 4098.0f, 133.0f, 2.28f},
+    // 79: Gold
+    {19300.0f, 1337.33f, 3129.0f, 129.0f, 2.54f},
+    // 80: Mercury
+    {13534.0f, 234.43f, 629.88f, 140.0f, 2.0f},
+    // 81: Thallium
+    {11850.0f, 577.0f, 1746.0f, 129.0f, 1.62f},
+    // 82: Lead
+    {11340.0f, 600.61f, 2022.0f, 129.0f, 2.33f},  // Using 4+ value
+    // 83: Bismuth
+    {9780.0f, 544.7f, 1837.0f, 122.0f, 2.02f},
+    // 84: Polonium
+    {9196.0f, 527.0f, 1235.0f, 0.0f, 2.0f},  // No specific heat data
+    // 85: Astatine
+    {8930.0f, 575.0f, 610.0f, 0.0f, 2.2f},  // Approx density, no specific heat
+    // 86: Radon
+    {9.73f, 202.0f, 211.3f, 94.0f, 2.2f},
+    // 87: Francium
+    {2480.0f, 281.0f, 890.0f, 0.0f, 0.79f},  // Approx values
+    // 88: Radium
+    {5500.0f, 973.0f, 2010.0f, 94.0f, 0.9f},
+    // 89: Actinium
+    {10000.0f, 1323.0f, 3471.0f, 120.0f, 1.1f},
+    // 90: Thorium
+    {11700.0f, 2115.0f, 5061.0f, 113.0f, 1.3f},
+    // 91: Protactinium
+    {15370.0f, 1841.0f, 4300.0f, 0.0f, 1.5f},  // No specific heat data
+    // 92: Uranium
+    {19100.0f, 1405.3f, 4404.0f, 116.0f, 1.38f},
+    // 93: Neptunium
+    {20450.0f, 917.0f, 4273.0f, 0.0f, 1.36f},  // No specific heat data
+    // 94: Plutonium
+    {19850.0f, 912.5f, 3501.0f, 0.0f, 1.28f},  // No specific heat data
+    // 95: Americium
+    {12000.0f, 1449.0f, 2880.0f, 0.0f, 1.13f},  // No specific heat data
+    // 96: Curium
+    {13510.0f, 1613.0f, 3383.0f, 0.0f, 1.28f},  // No specific heat data
+    // 97: Berkelium
+    {14780.0f, 1259.0f, 2900.0f, 0.0f, 1.3f},  // No specific heat data
+    // 98: Californium
+    {15100.0f, 1173.0f, 1743.0f, 0.0f, 1.3f},  // No specific heat data
+    // 99: Einsteinium
+    {8840.0f, 1133.0f, 1269.0f, 0.0f, 1.3f},  // No specific heat data
+    // 100: Fermium
+    {9700.0f, 1125.0f, 1800.0f, 0.0f, 1.3f},  // Estimated values
+    // 101: Mendelevium
+    {10300.0f, 1100.0f, 0.0f, 0.0f, 1.3f},  // Estimated
+    // 102: Nobelium
+    {9900.0f, 1100.0f, 0.0f, 0.0f, 1.3f},  // Estimated
+    // 103: Lawrencium
+    {14400.0f, 1900.0f, 0.0f, 0.0f, 1.3f},  // Estimated
+    // 104: Rutherfordium
+    {17000.0f, 2400.0f, 5800.0f, 0.0f, 0.0f},  // Estimated
+    // 105: Dubnium
+    {21600.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 106: Seaborgium
+    {23500.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 107: Bohrium
+    {26500.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 108: Hassium
+    {28000.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 109: Meitnerium
+    {27500.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 110: Darmstadtium
+    {26500.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 111: Roentgenium
+    {23000.0f, 0.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 112: Copernicium
+    {14000.0f, 283.0f, 340.0f, 0.0f, 0.0f},  // Estimated
+    // 113: Nihonium
+    {16000.0f, 700.0f, 1400.0f, 0.0f, 0.0f},  // Estimated
+    // 114: Flerovium
+    {11400.0f, 284.0f, 0.0f, 0.0f, 0.0f},  // Estimated
+    // 115: Moscovium
+    {13500.0f, 700.0f, 1400.0f, 0.0f, 0.0f},  // Estimated
+    // 116: Livermorium
+    {12900.0f, 700.0f, 1100.0f, 0.0f, 0.0f},  // Estimated
+    // 117: Tennessine
+    {7200.0f, 700.0f, 883.0f, 0.0f, 0.0f},  // Estimated
+    // 118: Oganesson
+    {7000.0f, 325.0f, 450.0f, 0.0f, 0.0f}  // Estimated
+}};
+
+struct PointProperties {
+    float weight = 0.0f;       // Total mass
+    float density = 0.0f;      // Mass / Volume
+    float meltingPoint = 0.0f; 
+    float boilingPoint = 0.0f;
+    float specificHeat = 0.0f;
+    float electronegativity = 0.0f;
+};
+
+struct elementContent {
+    float hydrogen      = 0.0f;
+    float helium        = 0.0f;
+    float lithium       = 0.0f;
+    float beryllium     = 0.0f;
+    float boron         = 0.0f;
+    float carbon        = 0.0f;
+    float nitrogen      = 0.0f;
+    float oxygen        = 0.0f;
+    float fluorine      = 0.0f;
+    float neon          = 0.0f;
+    float sodium        = 0.0f;
+    float magnesium     = 0.0f;
+    float aluminum      = 0.0f;
+    float silicon       = 0.0f;
+    float phosporus     = 0.0f;
+    float sulfur        = 0.0f;
+    float chlorine      = 0.0f;
+    float argon         = 0.0f;
+    float potassium     = 0.0f;
+    float calcium       = 0.0f;
+    float scandium      = 0.0f;
+    float titanium      = 0.0f;
+    float vanadium      = 0.0f;
+    float chromium      = 0.0f;
+    float manganese     = 0.0f;
+    float iron          = 0.0f;
+    float cobalt        = 0.0f;
+    float nickel        = 0.0f;
+    float copper        = 0.0f;
+    float zinc          = 0.0f;
+    float gallium       = 0.0f;
+    float germanium     = 0.0f;
+    float arsenic       = 0.0f;
+    float selenium      = 0.0f;
+    float bromine       = 0.0f;
+    float krypton       = 0.0f;
+    float rubidium      = 0.0f;
+    float strontium     = 0.0f;
+    float yttrium       = 0.0f;
+    float zirconium     = 0.0f;
+    float niobium       = 0.0f;
+    float molybdenum    = 0.0f;
+    float technetium    = 0.0f;
+    float ruthenium     = 0.0f;
+    float rhodium       = 0.0f;
+    float palladium     = 0.0f;
+    float silver        = 0.0f;
+    float cadmium       = 0.0f;
+    float indium        = 0.0f;
+    float tin           = 0.0f;
+    float antimony      = 0.0f;
+    float tellurium     = 0.0f;
+    float iodine        = 0.0f;
+    float xenon         = 0.0f;
+    float caesium       = 0.0f;
+    float barium        = 0.0f;
+    float lanthanum     = 0.0f;
+    float cerium        = 0.0f;
+    float praseodymium  = 0.0f;
+    float neodymium     = 0.0f;
+    float promethium    = 0.0f;
+    float samarium      = 0.0f;
+    float europium      = 0.0f;
+    float gadolinium    = 0.0f;
+    float terbium       = 0.0f;
+    float dysprosium    = 0.0f;
+    float holmium       = 0.0f;
+    float erbium        = 0.0f;
+    float thulium       = 0.0f;
+    float ytterbium     = 0.0f;
+    float lutetium      = 0.0f;
+    float hafnium       = 0.0f;
+    float tantalum      = 0.0f;
+    float tungsten      = 0.0f;
+    float rhenium       = 0.0f;
+    float osmium        = 0.0f;
+    float iridium       = 0.0f;
+    float platinum      = 0.0f;
+    float gold          = 0.0f;
+    float mercury       = 0.0f;
+    float thallium      = 0.0f;
+    float lead          = 0.0f;
+    float bismuth       = 0.0f;
+    float polonium      = 0.0f;
+    float astatine      = 0.0f;
+    float radon         = 0.0f;
+    float francium      = 0.0f;
+    float radium        = 0.0f;
+    float actinium      = 0.0f;
+    float thorium       = 0.0f;
+    float protactinium  = 0.0f;
+    float uranium       = 0.0f;
+    float neptunium     = 0.0f;
+    float plutonium     = 0.0f;
+    float americium     = 0.0f;
+    float curium        = 0.0f;
+    float berkelium     = 0.0f;
+    float californium   = 0.0f;
+    float einsteinium   = 0.0f;
+    float fermium       = 0.0f;
+    float mendelevium   = 0.0f;
+    float nobelium      = 0.0f;
+    float lawrencium    = 0.0f;
+    float rutherfordium = 0.0f;
+    float dubnium       = 0.0f;
+    float seaborgium    = 0.0f;
+    float bohrium       = 0.0f;
+    float hassium       = 0.0f;
+    float meitnerium    = 0.0f;
+    float darmstadtium  = 0.0f;
+    float roentgenium   = 0.0f;
+    float cpernicium    = 0.0f;
+    float nihnium       = 0.0f;
+    float flerovium     = 0.0f;
+    float moscovium     = 0.0f;
+    float livermorium   = 0.0f;
+    float tennessine    = 0.0f;
+    float oganesson     = 0.0f;
+};
+
+#endif

util/sim/fluidsim.hpp

@@ -0,0 +1,364 @@
+#ifndef FLUIDSIM_HPP
+#define FLUIDSIM_HPP
+
+#include <map>
+#include <iostream>
+#include <vector>
+#include <chrono>
+#include <thread>
+#include <atomic>
+#include <mutex>
+#include <cmath>
+#include <random>
+#include <algorithm>
+#include <unordered_map>
+
+#include "../util/grid/grid3eigen.hpp"
+#include "../util/output/frame.hpp"
+
+struct fluidParticle {
+    Eigen::Matrix<float, 3, 1> velocity;
+    Eigen::Matrix<float, 3, 1> acceleration;
+    Eigen::Matrix<float, 3, 1> forceAccumulator;
+    float density = 0.0f;
+    float pressure = 0.0f;
+    Eigen::Matrix<float, 3, 1> pressureForce;
+    float viscosity = 0.5f;
+    Eigen::Matrix<float, 3, 1> viscosityForce;
+    float restitution = 5.0f;
+    float mass;
+};
+
+struct gridConfig {
+    float gridSizeCube = 8192;
+    float SMOOTHING_RADIUS = 1024.0f;
+    float REST_DENSITY = 0.00005f;
+    float TIMESTEP = 0.016f;
+    float G_ATTRACTION = 50.0f;
+};
+
+Eigen::Matrix<float, 3, 1> posGen() {
+    static std::random_device rd;
+    static std::mt19937 gen(rd());
+    static std::normal_distribution<float> dist(0.0f, 1024.0f);
+    
+    return Eigen::Matrix<float, 3, 1>(dist(gen),dist(gen),dist(gen));
+}
+
+Eigen::Matrix<float, 3, 1> velGen() {
+    static std::random_device rd;
+    static std::mt19937 gen(rd());
+    static std::normal_distribution<float> dist(0.0f, 1.0f);
+    
+    return Eigen::Matrix<float, 3, 1>(dist(gen),dist(gen),dist(gen));
+}
+
+float W_poly6(Eigen::Vector3f rv, float h) {
+    float r = rv.squaredNorm();
+    
+    if (r > h || r < 0) return 0;
+    float factor = 315 / (64 * M_PI * pow(h, 9));
+    float m = pow(h*h-r, 3);
+    return factor * m;
+}
+
+Eigen::Vector3f gradW_poly6(Eigen::Vector3f rv, float h) {
+    float r = rv.squaredNorm();
+    float h2 = h * h;
+
+    if (r > h2 || r < 0) {
+        return Eigen::Vector3f::Zero();
+    }
+
+    float m = -6 * pow(h*h-r, 2);
+    float factor = -945.0f / (32.0f * M_PI * std::pow(h, 9));
+
+    return factor * m * rv;
+}
+
+float lapW_poly6(Eigen::Vector3f rv, float h) {
+    float r = rv.squaredNorm();
+    float h2 = h * h;
+
+    if (r > h || r < 0) return 0;
+
+    float m = h2 - r;
+    float term2 = 3.0f * h2 - 7.0f * r;
+    float factor = -945.0f / (32.0f * M_PI * std::pow(h, 9));
+
+    return factor * m * term2;
+}
+
+float W_spiky(Eigen::Vector3f rv, float h) {
+    float r = rv.norm();
+    if (r > h || r < 0) return 0;
+
+    float coeff = pow(r-h, 3);
+    float factor = 15 / (M_PI * pow(h, 6));
+
+    return factor * coeff;
+}
+
+Eigen::Vector3f gradW_spiky(Eigen::Vector3f rv, float h) {
+    float r = rv.norm();
+
+    if (r > h || r < 0) {
+        return Eigen::Vector3f::Zero();
+    }
+
+    float diff = h - r;
+    float coeff = -45.0f / (M_PI * std::pow(h, 6));
+    
+    Eigen::Vector3f direction = rv / r;
+
+    return coeff * std::pow(diff, 2) * direction;
+}
+
+float W_visc(Eigen::Vector3f rv, float h) {
+    float r = rv.norm();
+
+    if (r > h || r < 0) return 0;
+
+    float r2 = r * r;
+    float r3 = r2 * r;
+    float h3 = h * h * h;
+    
+    float coeff = 15.0f / (2.0f * M_PI * h3);
+    float term = (-0.5f * r3 / h3) + (r2 / (h * h)) + (h / (2.0f * r)) - 1.0f;
+
+    return coeff * term;
+}
+
+float lapW_visc(Eigen::Vector3f rv, float h) {
+    float r = rv.norm();
+
+    if (r > h || r < 0) return 0;
+
+    float diff = h - r;
+    float coeff = 45.0f / (M_PI * std::pow(h, 6));
+
+    return coeff * diff;
+}
+
+Eigen::Vector3f buildGradient(float value, const std::map<float, Eigen::Vector3f>& gradientKeys) {
+    auto exactMatch = gradientKeys.find(value);
+    if (exactMatch != gradientKeys.end()) {
+        return exactMatch->second;
+    }
+    auto lower = gradientKeys.lower_bound(value);
+    if (lower == gradientKeys.begin()) {
+        return gradientKeys.begin()->second;
+    }
+    if (lower == gradientKeys.end()) {
+        return gradientKeys.rbegin()->second;
+    }
+    auto upper = lower;
+    lower = std::prev(lower);
+    float key1 = lower->first;
+    float key2 = upper->first;
+    const Eigen::Vector3f& color1 = lower->second;
+    const Eigen::Vector3f& color2 = upper->second;
+    float t = (value - key1) / (key2 - key1);
+    t = std::clamp(t, 0.0f, 1.0f);
+    return color1 + t * (color2 - color1);
+}
+
+class fluidSim {
+private:
+    std::unordered_map<size_t, Eigen::Matrix<float, 3, 1>> idposMap;
+    float newMass = 1000;
+    int nextObjectId = 0;
+    std::map<float, Eigen::Vector3f> gradientmap;
+public:
+    gridConfig config;
+    float closeThresh;
+    Octree<fluidParticle> grid;
+
+    fluidSim() : grid({-config.gridSizeCube, -config.gridSizeCube, -config.gridSizeCube}, {config.gridSizeCube, config.gridSizeCube, config.gridSizeCube}) {
+        closeThresh = 0.01f * config.SMOOTHING_RADIUS;
+        //grid.setBackgroundColor({0.1f, 0.1f, 0.2f});
+        gradientmap.emplace(0.0, Eigen::Vector3f(1, 0, 0));
+        gradientmap.emplace(0.5, Eigen::Vector3f(0, 1, 0));
+        gradientmap.emplace(1.0, Eigen::Vector3f(0, 0, 1));
+    }
+
+    void reset() {
+        grid.clear();
+        idposMap.clear();
+        nextObjectId = 0;
+        newMass = 1000;
+    }
+
+    void spawnParticles(fluidParticle toSpawn, int count, bool resize = true) {
+        TIME_FUNCTION;
+        toSpawn.mass = newMass;
+        Eigen::Vector3f color = buildGradient(toSpawn.mass / 1000, gradientmap);
+        for (int i = 0; i < count; i++) {
+            Eigen::Matrix<float, 3, 1> pos = posGen();
+            int id = nextObjectId++;
+            
+            grid.set(toSpawn, pos, true, color, 10, true, id, (toSpawn.mass > 100) ? true : false, 1);
+            idposMap.emplace(id, pos);
+        }
+        if (resize){
+            newMass *= 0.999f;
+        }
+    }
+
+    float sphKernel(Eigen::Vector3f rv) {
+        float r = rv.norm();
+        if (r < closeThresh) return W_spiky(rv, config.G_ATTRACTION);
+        else return W_poly6(rv,config.G_ATTRACTION);
+    }
+
+    void computeDensities() {
+        for (auto& point : idposMap) {
+            float densSum = 0;
+            auto node = grid.find(point.second);
+            if (!node) continue;
+            std::vector<std::shared_ptr<Octree<fluidParticle>::NodeData>> neighbors = grid.findInRadius(point.second, config.SMOOTHING_RADIUS);
+            for (auto& neighbor : neighbors) {
+                Eigen::Vector3f rv = node->position - neighbor->position;
+                float w = sphKernel(rv);
+                densSum += neighbor->data.mass * w;
+            }
+            node->data.density = densSum;
+        }
+    }
+
+    void applyPressure() {
+        for (auto& point : idposMap) {
+            auto node = grid.find(point.second);
+            if (!node) {
+                continue;
+            }
+            node->data.pressure = node->data.restitution * (node->data.density - config.REST_DENSITY);
+        }
+
+        for (auto& point : idposMap) {
+            auto node = grid.find(point.second);
+            if (!node) {
+                continue;
+            }
+            Eigen::Vector3f pressureForce = Eigen::Vector3f::Zero();
+
+            std::vector<std::shared_ptr<Octree<fluidParticle>::NodeData>> neighbors = grid.findInRadius(point.second, config.SMOOTHING_RADIUS);
+            for (auto& neighbor : neighbors) {
+                if (node == neighbor) continue;
+                Eigen::Vector3f rv = node->position - neighbor->position;
+                Eigen::Vector3f gradW = gradW_spiky(rv, config.SMOOTHING_RADIUS);
+                float scalarP = (node->data.pressure + neighbor->data.pressure) / (2.0f * neighbor->data.density);
+
+                pressureForce -= neighbor->data.mass * scalarP * gradW;
+            }
+            node->data.pressureForce = pressureForce;
+        }
+    }
+
+    void applyViscosity() {
+        for (auto& point : idposMap) {
+            auto node = grid.find(point.second);
+            if (!node) continue;
+            Eigen::Vector3f viscosityForce = Eigen::Vector3f::Zero();
+            if (node->data.velocity == Eigen::Vector3f::Zero()) node->data.velocity = velGen();
+            
+            std::vector<std::shared_ptr<Octree<fluidParticle>::NodeData>> neighbors = grid.findInRadius(point.second, config.SMOOTHING_RADIUS);
+            for (auto& neighbor : neighbors) {
+                Eigen::Vector3f rv = node->position - neighbor->position;
+                Eigen::Vector3f velDiff = neighbor->data.velocity - node->data.velocity;
+                float lapW = lapW_visc(rv, config.SMOOTHING_RADIUS);
+                viscosityForce += node->data.viscosity * neighbor->data.mass * (velDiff / neighbor->data.density) * lapW;
+            }
+            node->data.viscosityForce = viscosityForce;
+        }
+    }
+    
+    Eigen::Vector3f applyMutualGravity(std::shared_ptr<Octree<fluidParticle>::NodeData>& node) {
+        Eigen::Vector3f gravityForce = Eigen::Vector3f::Zero();
+        std::vector<std::shared_ptr<Octree<fluidParticle>::NodeData>> neighbors = grid.findInRadius(node->position, config.SMOOTHING_RADIUS);
+        for (auto& neighbor : neighbors) {
+            if (node == neighbor) continue;
+            Eigen::Vector3f dir = neighbor->position - node->position;
+            float dist = dir.norm();
+            if (dist > EPSILON) {
+                dir.normalize();
+                float forceMag = (config.G_ATTRACTION * node->data.mass * neighbor->data.mass) / (dist * dist);
+                gravityForce += dir * forceMag;
+            }
+        }
+        return gravityForce;
+    }
+    
+    Eigen::Vector3f applyCenterGravity(std::shared_ptr<Octree<fluidParticle>::NodeData>& node) {
+        Eigen::Vector3f center = Eigen::Vector3f::Zero();
+        Eigen::Vector3f direction = center - node->position;
+        float distSq = direction.squaredNorm();
+        float dist = std::sqrt(distSq);
+        if (dist < 50.0f) {
+            dist = 50.0f;
+            distSq = 2500.0f; 
+        }
+        direction /= dist;
+        float centerMass = 5000.0f; 
+        float forceMag = (config.G_ATTRACTION * node->data.mass * centerMass) / distSq;
+        return direction * forceMag;
+    }
+
+    void applyForce() {
+        for (auto& point : idposMap) {
+            auto node = grid.find(point.second);
+            if (!node) continue;
+            Eigen::Vector3f internalForces = node->data.pressureForce + node->data.viscosityForce;
+            Eigen::Vector3f acceleration = (internalForces / node->data.mass);
+            Eigen::Vector3f gravity = applyMutualGravity(node);
+            gravity += applyCenterGravity(node);
+            node->data.forceAccumulator = (acceleration + gravity) / node->data.mass;
+        }
+    }
+
+    void replaceLost() {
+        std::vector<size_t> idsToRemove;
+        int gridHalfSize = config.gridSizeCube / 2;
+        for (auto& point : idposMap) { 
+            if (std::abs(point.second[0]) > gridHalfSize || 
+                std::abs(point.second[1]) > gridHalfSize ||
+                std::abs(point.second[2]) > gridHalfSize) {
+                idsToRemove.push_back(point.first);
+            }
+        }
+
+        for (size_t id : idsToRemove) {
+            grid.remove(idposMap[id]);
+            idposMap.erase(id);
+        }
+
+        if (!idsToRemove.empty()) {
+            fluidParticle newParticles;
+            spawnParticles(newParticles, idsToRemove.size(), false);
+        }
+    }
+
+    void applyPhysics() {
+        computeDensities();
+        applyPressure();
+        applyViscosity();
+        applyForce();
+
+        for (auto& point : idposMap) {
+            auto node = grid.find(point.second);
+            if (!node) continue;
+            Eigen::Matrix<float, 3, 1> acceleration = node->data.forceAccumulator;
+            node->data.velocity += acceleration * config.TIMESTEP;
+            Eigen::Matrix<float, 3, 1> newPos = point.second + (node->data.velocity);
+            Eigen::Vector3f oldPos = point.second;
+            if (grid.move(oldPos, newPos)) {
+                idposMap[point.first] = newPos;
+            }
+        }
+        replaceLost();
+    }
+    
+    size_t getParticleCount() const { return idposMap.size(); }
+};
+
+#endif

util/simblocks/temp.hpp

@@ -1,111 +0,0 @@
-#ifndef temp_hpp
-#define temp_hpp
-
-#include "../vectorlogic/vec2.hpp"
-#include "../timing_decorator.hpp"
-#include <vector>
-#include <unordered_map>
-
-class Temp {
-private:
-
-protected:
-    static Vec2 findClosestPoint(const Vec2& position, std::unordered_map<Vec2, Temp> others) {
-        if (others.empty()) {
-            return position;
-        }
-        
-        auto closest = others.begin();
-        float minDistance = position.distance(closest->first);
-        
-        for (auto it = std::next(others.begin()); it != others.end(); ++it) {
-            float distance = position.distance(it->first);
-            if (distance < minDistance) {
-                minDistance = distance;
-                closest = it;
-            }
-        }
-        
-        return closest->first;
-    }
-    
-
-public:
-    float temp;
-    float conductivity = 0.5;
-    float specific_heat = 900.0;
-    float diffusivity = 2000.0;
-    
-    Temp() : temp(0.0) {};
-    Temp(float temp) : temp(temp) {};
-    
-    Temp(const Vec2& testPos, const std::unordered_map<Vec2, Temp>& others) {
-        TIME_FUNCTION;
-        float power = 2.0;
-        float num = 0.0;
-        float den = 0.0;
-        
-        for (const auto& [point, tempObj] : others) {
-            float dist = testPos.distance(point);
-            float weight = 1.0 / std::pow(dist, power);
-            num += weight * tempObj.temp;
-            den += weight;
-        }
-
-        if (den < 1e-10 && den > -1e-10) {
-            den = 1e-10;
-        }
-        this->temp = num / den;
-    }
-    
-    static float calTempIDW(const Vec2& testPos, const std::unordered_map<Vec2, Temp>& others) {
-        TIME_FUNCTION;
-        float power = 2.0;
-        float num = 0.0;
-        float den = 0.0;
-        for (const auto& [point, temp] : others) {
-            float dist = testPos.distance(point);
-
-            float weight = 1.0 / std::pow(dist, power);
-            num += weight * temp.temp;
-            den += weight;
-        }
-
-        if (den < 1e-10 && den > -1e-10) {
-            den = 1e-10;
-        }
-        return num / den;
-    }
-    
-    void calLapl(const Vec2& testPos, const std::unordered_map<Vec2, Temp>& others, float deltaTime) {
-        //TIME_FUNCTION;
-        float dt = deltaTime;
-        float sumWeights = 0.0f;
-        float sumTempWeights = 0.0f;
-        float searchRadius = 25.0f;
-
-        for (const auto& [point, tempObj] : others) {
-            float dist = testPos.distance(point);
-            
-            if (dist < 0.001f || dist > searchRadius) continue;
-
-            float weight = 1.0f / (dist * dist);
-
-            sumTempWeights += weight * tempObj.temp;
-            sumWeights += weight;
-        }
-
-        if (sumWeights < 1e-10f) return;
-
-        float equilibriumTemp = sumTempWeights / sumWeights;
-
-        float rate = this->diffusivity * 0.01f;
-        
-        float lerpFactor = 1.0f - std::exp(-rate * dt);
-
-        this->temp += (equilibriumTemp - this->temp) * lerpFactor;
-    }
-    
-};
-
-#endif

util/simblocks/water.hpp

@@ -1,172 +0,0 @@
-#ifndef WATER_HPP
-#define WATER_HPP
-
-#include "../vectorlogic/vec2.hpp"
-#include "../vectorlogic/vec3.hpp"
-#include <cmath>
-
-// Water constants (SI units: Kelvin, Pascals, Meters)
-struct WaterConstants {
-    // Thermodynamic properties at STP (Standard Temperature and Pressure)
-    static constexpr float STANDARD_TEMPERATURE = 293.15f;
-    static constexpr float STANDARD_PRESSURE = 101325.0f;
-    static constexpr float FREEZING_POINT = 273.15f;
-    static constexpr float BOILING_POINT = 373.15f;
-    
-    // Reference densities (kg/m³)
-    static constexpr float DENSITY_STP = 998.0f;
-    static constexpr float DENSITY_0C = 999.8f;
-    static constexpr float DENSITY_4C = 1000.0f;
-    
-    // Viscosity reference values (Pa·s)
-    static constexpr float VISCOSITY_0C = 0.001792f;
-    static constexpr float VISCOSITY_20C = 0.001002f;
-    static constexpr float VISCOSITY_100C = 0.000282f;
-    
-    // Thermal properties
-    static constexpr float SPECIFIC_HEAT_CAPACITY = 4182.0f;
-    static constexpr float THERMAL_CONDUCTIVITY = 0.598f;
-    static constexpr float LATENT_HEAT_VAPORIZATION = 2257000.0f;
-    static constexpr float LATENT_HEAT_FUSION = 334000.0f;
-    
-    // Other physical constants
-    static constexpr float SURFACE_TENSION = 0.0728f;
-    static constexpr float SPEED_OF_SOUND = 1482.0f;
-    static constexpr float BULK_MODULUS = 2.15e9f;
-};
-
-class WaterThermodynamics {
-public:
-    // Calculate density based on temperature (empirical relationship for 0-100°C)
-    static float calculateDensity(float temperature_K) {
-        // Empirical formula for pure water density vs temperature
-        float T = temperature_K - 273.15f; // Convert to Celsius for empirical formulas
-        
-        if (T <= 0.0f) return WaterConstants::DENSITY_0C;
-        if (T >= 100.0f) return 958.4f; // Density at 100°C
-        
-        // Polynomial approximation for 0-100°C range
-        return 1000.0f * (1.0f - (T + 288.9414f) * (T - 3.9863f) * (T - 3.9863f) / 
-                         (508929.2f * (T + 68.12963f)));
-    }
-    
-    // Calculate dynamic viscosity based on temperature (using Vogel-Fulcher-Tammann equation)
-    static float calculateViscosity(float temperature_K) {
-        float T = temperature_K;
-        // Vogel-Fulcher-Tammann equation parameters for water
-        constexpr float A = -3.7188f;
-        constexpr float B = 578.919f;
-        constexpr float C = -137.546f;
-        
-        return 0.001f * std::exp(A + B / (T - C)); // Returns in Pa·s
-    }
-    
-    // Calculate viscosity using simpler Arrhenius-type equation (good for 0-100°C)
-    static float calculateViscositySimple(float temperature_K) {
-        float T = temperature_K - 273.15f; // Celsius
-        
-        if (T <= 0.0f) return WaterConstants::VISCOSITY_0C;
-        if (T >= 100.0f) return WaterConstants::VISCOSITY_100C;
-        
-        // Simple exponential decay model for 0-100°C range
-        return 0.001792f * std::exp(-0.024f * T);
-    }
-    
-    // Calculate thermal conductivity (W/(m·K))
-    static float calculateThermalConductivity(float temperature_K) {
-        float T = temperature_K - 273.15f; // Celsius
-        // Linear approximation for 0-100°C
-        return 0.561f + 0.002f * T - 0.00001f * T * T;
-    }
-    
-    // Calculate surface tension (N/m)
-    static float calculateSurfaceTension(float temperature_K) {
-        float T = temperature_K - 273.15f; // Celsius
-        // Linear decrease with temperature
-        return 0.07564f - 0.000141f * T - 0.00000025f * T * T;
-    }
-    
-    // Calculate speed of sound in water (m/s)
-    static float calculateSpeedOfSound(float temperature_K, float pressure_Pa = WaterConstants::STANDARD_PRESSURE) {
-        float T = temperature_K - 273.15f; // Celsius
-        // Empirical formula for pure water
-        return 1402.5f + 5.0f * T - 0.055f * T * T + 0.0003f * T * T * T;
-    }
-    
-    // Calculate bulk modulus (compressibility) in Pa
-    static float calculateBulkModulus(float temperature_K, float pressure_Pa = WaterConstants::STANDARD_PRESSURE) {
-        float T = temperature_K - 273.15f; // Celsius
-        // Approximation - decreases slightly with temperature
-        return WaterConstants::BULK_MODULUS * (1.0f - 0.0001f * T);
-    }
-    
-    // Check if water should change phase
-    static bool isFrozen(float temperature_K, float pressure_Pa = WaterConstants::STANDARD_PRESSURE) {
-        return temperature_K <= WaterConstants::FREEZING_POINT;
-    }
-    
-    static bool isBoiling(float temperature_K, float pressure_Pa = WaterConstants::STANDARD_PRESSURE) {
-        // Simple boiling point calculation (neglecting pressure effects for simplicity)
-        return temperature_K >= WaterConstants::BOILING_POINT;
-    }
-};
-
-struct WaterParticle {
-    Vec3 velocity;
-    Vec3 acceleration;
-    Vec3 force;
-    
-    float temperature;
-    float pressure;
-    float density;
-    float mass;
-    float viscosity;
-    
-    float volume;
-    float energy;
-    
-    WaterParticle(float percent = 1.0f, float temp_K = WaterConstants::STANDARD_TEMPERATURE) 
-        : velocity(0, 0, 0), acceleration(0, 0, 0), force(0, 0, 0),
-          temperature(temp_K), pressure(WaterConstants::STANDARD_PRESSURE),
-          volume(1.0f * percent) {
-        
-        updateThermodynamicProperties();
-        
-        // Mass is density × volume
-        mass = density * volume;
-        energy = mass * WaterConstants::SPECIFIC_HEAT_CAPACITY * temperature;
-    }
-    
-    // Update all temperature-dependent properties
-    void updateThermodynamicProperties() {
-        density = WaterThermodynamics::calculateDensity(temperature);
-        viscosity = WaterThermodynamics::calculateViscosity(temperature);
-        
-        // If we have a fixed mass, adjust volume for density changes
-        if (mass > 0.0f) {
-            volume = mass / density;
-        }
-    }
-    
-    // Add thermal energy and update temperature
-    void addThermalEnergy(float energy_joules) {
-        energy += energy_joules;
-        temperature = energy / (mass * WaterConstants::SPECIFIC_HEAT_CAPACITY);
-        updateThermodynamicProperties();
-    }
-    
-    // Set temperature directly
-    void setTemperature(float temp_K) {
-        temperature = temp_K;
-        energy = mass * WaterConstants::SPECIFIC_HEAT_CAPACITY * temperature;
-        updateThermodynamicProperties();
-    }
-    
-    // Check phase state
-    bool isFrozen() const { return WaterThermodynamics::isFrozen(temperature, pressure); }
-    bool isBoiling() const { return WaterThermodynamics::isBoiling(temperature, pressure); }
-    bool isLiquid() const { return !isFrozen() && !isBoiling(); }
-};
-
-
-#endif

util/timing_decorator.cpp

@@ -1,3 +1,6 @@
+#ifndef TIMING_CPP
+#define TIMING_CPP
+
 #include "timing_decorator.hpp"
 #include <cmath>
 
@@ -113,3 +116,5 @@ void FunctionTimer::printStats(Mode mode) {
 void FunctionTimer::clearStats() {
     stats_.clear();
 }
+
+#endif

util/vectorlogic/vec2.hpp

@@ -5,11 +5,16 @@
 #include <algorithm>
 #include <string>
 
+template<typename T>
 class Vec2 {
 public:
-    float x, y;
+    T x, y;
+    
     Vec2() : x(0), y(0) {}
-    Vec2(float x, float y) : x(x), y(y) {}
+    Vec2(T x, T y) : x(x), y(y) {}
+    
+    template<typename U>
+    explicit Vec2(const Vec2<U>& other) : x(static_cast<T>(other.x)), y(static_cast<T>(other.y)) {}
     
     Vec2& move(const Vec2 newpos) {
         x = newpos.x;
@@ -33,11 +38,13 @@ class Vec2 {
         return Vec2(x / other.x, y / other.y);
     }
     
-    Vec2 operator+(float scalar) const {
+    template<typename U>
+    Vec2 operator+(U scalar) const {
         return Vec2(x + scalar, y + scalar);
     }
     
-    Vec2 operator-(float scalar) const {
+    template<typename U>
+    Vec2 operator-(U scalar) const {
         return Vec2(x - scalar, y - scalar);
     }
     
@@ -45,16 +52,19 @@ class Vec2 {
         return Vec2(-x, -y);
     }
     
-    Vec2 operator*(float scalar) const {
+    template<typename U>
+    Vec2 operator*(U scalar) const {
         return Vec2(x * scalar, y * scalar);
     }
     
-    Vec2 operator/(float scalar) const {
+    template<typename U>
+    Vec2 operator/(U scalar) const {
         return Vec2(x / scalar, y / scalar);
     }
     
-    Vec2& operator=(float scalar) {
+    template<typename U>
-        x = y = scalar;
+    Vec2& operator=(U scalar) {
+        x = y = static_cast<T>(scalar);
         return *this;
     }
     
@@ -82,57 +92,64 @@ class Vec2 {
         return *this;
     }
     
-    Vec2& operator+=(float scalar) {
+    template<typename U>
+    Vec2& operator+=(U scalar) {
         x += scalar;
         y += scalar;
         return *this;
     }
     
-    Vec2& operator-=(float scalar) {
+    template<typename U>
+    Vec2& operator-=(U scalar) {
         x -= scalar;
         y -= scalar;
         return *this;
     }
     
-    Vec2& operator*=(float scalar) {
+    template<typename U>
+    Vec2& operator*=(U scalar) {
         x *= scalar;
         y *= scalar;
         return *this;
     }
     
-    Vec2& operator/=(float scalar) {
+    template<typename U>
+    Vec2& operator/=(U scalar) {
         x /= scalar;
         y /= scalar;
         return *this;
     }
     
-    float dot(const Vec2& other) const {
+    T dot(const Vec2& other) const {
         return x * other.x + y * other.y;
     }
     
-    float length() const {
+    template<typename U = float>
-        return std::sqrt(x * x + y * y);
+    U length() const {
+        return std::sqrt(static_cast<U>(x * x + y * y));
     }
     
-    float lengthSquared() const {
+    T lengthSquared() const {
         return x * x + y * y;
     }
     
-    float distance(const Vec2& other) const {
+    template<typename U = float>
-        return (*this - other).length();
+    U distance(const Vec2& other) const {
+        return (*this - other).template length<U>();
     }
     
-    float distanceSquared(const Vec2& other) const {
+    T distanceSquared(const Vec2& other) const {
         Vec2 diff = *this - other;
         return diff.x * diff.x + diff.y * diff.y;
     }
     
-    Vec2 normalized() const {
+    template<typename U = float>
-        float len = length();
+    Vec2<U> normalized() const {
+        auto len = length<U>();
         if (len > 0) {
-            return *this / len;
+            return Vec2<U>(static_cast<U>(x) / len, static_cast<U>(y) / len);
         }
-        return *this;
+        return Vec2<U>(static_cast<U>(x), static_cast<U>(y));
     }
     
     bool operator==(const Vec2& other) const {
@@ -190,87 +207,90 @@ class Vec2 {
         );
     }
     
-    Vec2 clamp(float minVal, float maxVal) const {
+    template<typename U>
+    Vec2 clamp(U minVal, U maxVal) const {
         return Vec2(
-            std::clamp(x, minVal, maxVal),
+            std::clamp(x, static_cast<T>(minVal), static_cast<T>(maxVal)),
-            std::clamp(y, minVal, maxVal)
+            std::clamp(y, static_cast<T>(minVal), static_cast<T>(maxVal))
         );
     }
     
-    bool isZero(float epsilon = 1e-10f) const {
+    template<typename U = float>
-        return std::abs(x) < epsilon && std::abs(y) < epsilon;
+    bool isZero(U epsilon = static_cast<U>(1e-10)) const {
+        return std::abs(static_cast<U>(x)) < epsilon && 
+               std::abs(static_cast<U>(y)) < epsilon;
     }
     
-    bool equals(const Vec2& other, float epsilon = 1e-10f) const {
+    template<typename U = float>
-        return std::abs(x - other.x) < epsilon && 
+    bool equals(const Vec2& other, U epsilon = static_cast<U>(1e-10)) const {
-               std::abs(y - other.y) < epsilon;
+        return std::abs(static_cast<U>(x - other.x)) < epsilon && 
-    }
+               std::abs(static_cast<U>(y - other.y)) < epsilon;
-    
-    friend Vec2 operator+(float scalar, const Vec2& vec) {
-        return Vec2(scalar + vec.x, scalar + vec.y);
-    }
-    
-    friend Vec2 operator-(float scalar, const Vec2& vec) {
-        return Vec2(scalar - vec.x, scalar - vec.y);
-    }
-    
-    friend Vec2 operator*(float scalar, const Vec2& vec) {
-        return Vec2(scalar * vec.x, scalar * vec.y);
-    }
-    
-    friend Vec2 operator/(float scalar, const Vec2& vec) {
-        return Vec2(scalar / vec.x, scalar / vec.y);
     }
     
     Vec2 perpendicular() const {
         return Vec2(-y, x);
     }
     
-    Vec2 reflect(const Vec2& normal) const {
+    template<typename U = float>
-        return *this - 2.0f * this->dot(normal) * normal;
+    Vec2<U> reflect(const Vec2<U>& normal) const {
+        auto this_f = Vec2<U>(static_cast<U>(x), static_cast<U>(y));
+        return this_f - static_cast<U>(2.0) * this_f.dot(normal) * normal;
     }
     
-    Vec2 lerp(const Vec2& other, float t) const {
+    template<typename U = float>
-        t = std::clamp(t, 0.0f, 1.0f);
+    Vec2<U> lerp(const Vec2<U>& other, U t) const {
-        return *this + (other - *this) * t;
+        t = std::clamp(t, static_cast<U>(0.0), static_cast<U>(1.0));
+        auto this_f = Vec2<U>(static_cast<U>(x), static_cast<U>(y));
+        return this_f + (other - this_f) * t;
     }
     
-    Vec2 slerp(const Vec2& other, float t) const {
+    template<typename U = float>
-        t = std::clamp(t, 0.0f, 1.0f);
+    Vec2<U> slerp(const Vec2<U>& other, U t) const {
-        float dot = this->dot(other);
+        t = std::clamp(t, static_cast<U>(0.0), static_cast<U>(1.0));
-        dot = std::clamp(dot, -1.0f, 1.0f);
+        auto this_f = Vec2<U>(static_cast<U>(x), static_cast<U>(y));
+        U dot = this_f.dot(other);
+        dot = std::clamp(dot, static_cast<U>(-1.0), static_cast<U>(1.0));
         
-        float theta = std::acos(dot) * t;
+        U theta = std::acos(dot) * t;
-        Vec2 relative = other - *this * dot;
+        auto relative = other - this_f * dot;
         relative = relative.normalized();
         
-        return (*this * std::cos(theta)) + (relative * std::sin(theta));
+        return (this_f * std::cos(theta)) + (relative * std::sin(theta));
     }
     
-    Vec2 rotate(float angle) const {
+    template<typename U = float>
-        float cosA = std::cos(angle);
+    Vec2<U> rotate(U angle) const {
-        float sinA = std::sin(angle);
+        U cosA = std::cos(angle);
-        return Vec2(x * cosA - y * sinA, x * sinA + y * cosA);
+        U sinA = std::sin(angle);
+        return Vec2<U>(
+            static_cast<U>(x) * cosA - static_cast<U>(y) * sinA,
+            static_cast<U>(x) * sinA + static_cast<U>(y) * cosA
+        );
     }
     
-    float angle() const {
+    template<typename U = float>
-        return std::atan2(y, x);
+    U angle() const {
+        return std::atan2(static_cast<U>(y), static_cast<U>(x));
     }
     
-    float angleTo(const Vec2& other) const {
+    template<typename U = float>
-        return std::acos(this->dot(other) / (this->length() * other.length()));
+    U angleTo(const Vec2<U>& other) const {
+        auto this_f = Vec2<U>(static_cast<U>(x), static_cast<U>(y));
+        return std::acos(this_f.dot(other) / (this_f.length() * other.length()));
     }
     
-    float directionTo(const Vec2& other) const {
+    template<typename U = float>
-        Vec2 direction = other - *this;
+    U directionTo(const Vec2<U>& other) const {
+        auto this_f = Vec2<U>(static_cast<U>(x), static_cast<U>(y));
+        auto direction = other - this_f;
         return direction.angle();
     }
     
-    float& operator[](int index) {
+    T& operator[](int index) {
         return (&x)[index];
     }
     
-    const float& operator[](int index) const {
+    const T& operator[](int index) const {
         return (&x)[index];
     }
     
@@ -285,23 +305,62 @@ class Vec2 {
     
     struct Hash {
         std::size_t operator()(const Vec2& v) const {
-            return std::hash<float>()(v.x) ^ (std::hash<float>()(v.y) << 1);
+            return std::hash<T>()(v.x) ^ (std::hash<T>()(v.y) << 1);
         }
     };
+
+    float aspect() {
+        return static_cast<float>(x) / static_cast<float>(y);
+    }
+    
+    Vec2<float> toFloat() {
+        return Vec2<float>(static_cast<float>(x), static_cast<float>(y));
+    }
+    
 };
 
-inline std::ostream& operator<<(std::ostream& os, const Vec2& vec) {
+template<typename T>
+inline std::ostream& operator<<(std::ostream& os, const Vec2<T>& vec) {
     os << vec.toString();
     return os;
 }
 
+template<typename T, typename U>
+auto operator+(U scalar, const Vec2<T>& vec) -> Vec2<decltype(scalar + vec.x)> {
+    using ResultType = decltype(scalar + vec.x);
+    return Vec2<ResultType>(scalar + vec.x, scalar + vec.y);
+}
+
+template<typename T, typename U>
+auto operator-(U scalar, const Vec2<T>& vec) -> Vec2<decltype(scalar - vec.x)> {
+    using ResultType = decltype(scalar - vec.x);
+    return Vec2<ResultType>(scalar - vec.x, scalar - vec.y);
+}
+
+template<typename T, typename U>
+auto operator*(U scalar, const Vec2<T>& vec) -> Vec2<decltype(scalar * vec.x)> {
+    using ResultType = decltype(scalar * vec.x);
+    return Vec2<ResultType>(scalar * vec.x, scalar * vec.y);
+}
+
+template<typename T, typename U>
+auto operator/(U scalar, const Vec2<T>& vec) -> Vec2<decltype(scalar / vec.x)> {
+    using ResultType = decltype(scalar / vec.x);
+    return Vec2<ResultType>(scalar / vec.x, scalar / vec.y);
+}
+
 namespace std {
-    template<>
+    template<typename T>
-    struct hash<Vec2> {
+    struct hash<Vec2<T>> {
-        size_t operator()(const Vec2& v) const {
+        size_t operator()(const Vec2<T>& v) const {
-            return hash<float>()(v.x) ^ (hash<float>()(v.y) << 1);
+            return hash<T>()(v.x) ^ (hash<T>()(v.y) << 1);
         }
     };
 }
 
+using Vec2f = Vec2<float>;
+using Vec2d = Vec2<double>;
+using Vec2i = Vec2<int>;
+using Vec2u = Vec2<unsigned int>;
+
 #endif

util/vectorlogic/vec3.hpp

@@ -5,18 +5,30 @@
 #include <algorithm>
 #include <string>
 #include <ostream>
+#include <cstdint>
+#include <stdfloat>
+#include <cstring>
+#include "vec2.hpp"
+#include "../basicdefines.hpp"
+
+#ifdef __SSE__
+#include <xmmintrin.h>
+#endif
 
 template<typename T>
-class Vec3 {
+class alignas(16) Vec3 {
 public:
     struct{ T x, y, z; };
     
     Vec3() : x(0), y(0), z(0) {}
     Vec3(T x, T y, T z) : x(x), y(y), z(z) {}
     Vec3(T scalar) : x(scalar), y(scalar), z(scalar) {}
-    Vec3(float[3] acd) : x(acd[0]), y(acd[1]), z(acd[2]) {}
+    Vec3(float acd[3]) : x(acd[0]), y(acd[1]), z(acd[2]) {}
+    template<typename U>
+    Vec3(const Vec3<U>& other) : x(static_cast<T>(other.x)), y(static_cast<T>(other.y)), z(static_cast<T>(other.z)) {}
     
-    Vec3(const class Vec2& vec2, T z = 0);
+    template<typename U>
+    Vec3(const class Vec2<U>& vec2, U z = 0) : x(static_cast<T>(vec2.x)), y(static_cast<T>(vec2.y)), z(static_cast<T>(z)) {}
     
     Vec3& move(const Vec3& newpos) {
         x = newpos.x;
@@ -26,19 +38,23 @@ public:
     }
 
     // Arithmetic operations
-    Vec3 operator+(const Vec3& other) const {
+    template<typename U>
+    Vec3 operator+(const Vec3<U>& other) const {
         return Vec3(x + other.x, y + other.y, z + other.z);
     }
     
-    Vec3 operator-(const Vec3& other) const {
+    template<typename U>
+    Vec3 operator-(const Vec3<U>& other) const {
         return Vec3(x - other.x, y - other.y, z - other.z);
     }
     
-    Vec3 operator*(const Vec3& other) const {
+    template<typename U>
+    Vec3 operator*(const Vec3<U>& other) const {
         return Vec3(x * other.x, y * other.y, z * other.z);
     }
     
-    Vec3 operator/(const Vec3& other) const {
+    template<typename U>
+    Vec3 operator/(const Vec3<U>& other) const {
         return Vec3(x / other.x, y / other.y, z / other.z);
     }
 
@@ -59,7 +75,8 @@ public:
     }
 
     Vec3 operator/(T scalar) const {
-        return Vec3(x / scalar, y / scalar, z / scalar);
+        T invScalar = T(1) / scalar;
+        return Vec3(x * invScalar, y * invScalar, z * invScalar);
     }
 
     Vec3& operator=(T scalar) {
@@ -117,9 +134,10 @@ public:
     }
     
     Vec3& operator/=(T scalar) {
-        x /= scalar;
+        T invScalar = T(1) / scalar;
-        y /= scalar;
+        x *= invScalar;
-        z /= scalar;
+        y *= invScalar;
+        z *= invScalar;
         return *this;
     }
 
@@ -127,7 +145,7 @@ public:
         return x * other.x + y * other.y + z * other.z;
     }
     
-    Vec3& cross(const Vec3& other) const {
+    Vec3 cross(const Vec3& other) const {
         return Vec3(
             y * other.z - z * other.y,
             z * other.x - x * other.z,
@@ -136,7 +154,31 @@ public:
     }
 
     T length() const {
-        return static_cast<T>(std::sqrt(static_cast<double>(x * x + y * y + z * z)));
+        return std::sqrt(x * x + y * y + z * z);
+    }
+    
+    // Fast inverse length (Quake III algorithm)
+    T invLength() const {
+        const T lenSq = x * x + y * y + z * z;
+        if (lenSq == 0) return 0;
+        
+        // Fast inverse square root approximation
+        const T half = T(0.5) * lenSq;
+        T o = lenSq;
+        
+        // Type punning for float/double
+        if constexpr (std::is_same_v<T, float>) {
+            long i = *(long*)&o;
+            i = 0x5f3759df - (i >> 1);
+            o = *(float*)&i;
+        } else if constexpr (std::is_same_v<T, double>) {
+            long long i = *(long long*)&o;
+            i = 0x5fe6eb50c7b537a9 - (i >> 1);
+            o = *(double*)&i;
+        }
+        
+        o = o * (T(1.5) - (half * o * o));
+        return o;
     }
     
     T lengthSquared() const {
@@ -149,13 +191,28 @@ public:
     
     T distanceSquared(const Vec3& other) const {
         Vec3 diff = *this - other;
-        return diff.x * diff.x + diff.y * diff.y + diff.z * diff.z;
+        return diff.lengthSquared();
     }
 
+    // Normalized with SSE optimization
     Vec3 normalized() const {
-        T len = length();
+        const T invLen = invLength();
-        if (len > 0) {
+        if (invLen > 0) {
-            return *this / len;
+            #ifdef __SSE__
+                if constexpr (std::is_same_v<T, float>) {
+                    __m128 vec = _mm_set_ps(0.0f, z, y, x);
+                    __m128 inv = _mm_set1_ps(invLen);
+                    __m128 result = _mm_mul_ps(vec, inv);
+                    
+                    alignas(16) float components[4];
+                    _mm_store_ps(components, result);
+                    return Vec3(components[0], components[1], components[2]);
+                } else
+            #endif
+            {
+                // Fallback to scalar operations
+                return Vec3(x * invLen, y * invLen, z * invLen);
+            }
         }
         return *this;
     }
@@ -169,27 +226,77 @@ public:
     }
     
     bool operator<(const Vec3& other) const {
-        return (x < other.x) || 
+        return (lengthSquared() < other.lengthSquared());
-               (x == other.x && y < other.y) || 
+    }
-               (x == other.x && y == other.y && z < other.z);
+
+    bool operator<(T scalar) const {
+        return (x < scalar && y < scalar && z < scalar);
     }
     
     bool operator<=(const Vec3& other) const {
-        return (x < other.x) || 
+        return (lengthSquared() <= other.lengthSquared());
-               (x == other.x && y < other.y) || 
+    }
-               (x == other.x && y == other.y && z <= other.z);
+    
+    bool operator<=(T scalar) const {
+        return (x <= scalar && y <= scalar && z <= scalar);
     }
     
     bool operator>(const Vec3& other) const {
-        return (x > other.x) || 
+        return (lengthSquared() > other.lengthSquared());
-               (x == other.x && y > other.y) || 
+    }
-               (x == other.x && y == other.y && z > other.z);
+
+    bool operator>(T scalar) const {
+        return (x > scalar && y > scalar && z > scalar);
     }
     
     bool operator>=(const Vec3& other) const {
-        return (x > other.x) || 
+        return (lengthSquared() >= other.lengthSquared());
-               (x == other.x && y > other.y) || 
+    }
-               (x == other.x && y == other.y && z >= other.z);
+    
+    bool operator>=(T scalar) const {
+        return (x >= scalar && y >= scalar && z >= scalar);
+    }
+    
+    bool AllLT(const Vec3& other) const {
+        return x < other.x && y < other.y && z < other.z;
+    }
+    
+    bool AllGT(const Vec3& other) const {
+        return x > other.x && y > other.y && z > other.z;
+    }
+    
+    bool AllLTE(const Vec3& other) const {
+        return x <= other.x && y <= other.y && z <= other.z;
+    }
+    
+    bool AllGTE(const Vec3& other) const {
+        return x >= other.x && y >= other.y && z >= other.z;
+    }
+    
+    bool AnyLT(const Vec3& other) const {
+        return x < other.x || y < other.y || z < other.z;
+    }
+    
+    bool AnyGT(const Vec3& other) const {
+        return x > other.x || y > other.y || z > other.z;
+    }
+    
+    bool AnyLTE(const Vec3& other) const {
+        return x <= other.x || y <= other.y || z <= other.z;
+    }
+    
+    bool AnyGTE(const Vec3& other) const {
+        return x >= other.x || y >= other.y || z >= other.z;
+    }
+
+    template<typename CompareFunc>
+    Vec3<bool> mask(CompareFunc comp, T value) const {
+        return Vec3<bool>(comp(x, value), comp(y, value), comp(z, value));
+    }
+
+    template<typename CompareFunc>
+    Vec3<bool> mask(CompareFunc comp, const Vec3& other) const {
+        return Vec3<bool>(comp(x, other.x), comp(y, other.y), comp(z, other.z));
     }
 
     Vec3 abs() const {
@@ -200,6 +307,26 @@ public:
         return Vec3(std::floor(x), std::floor(y), std::floor(z));
     }
 
+    Vec3<int> floorToI() const {
+        return Vec3<int>(static_cast<int>(std::floor(x)), static_cast<int>(std::floor(y)), static_cast<int>(std::floor(z)));
+    }
+
+    Vec3<uint8_t> floorToI8() const {
+        return Vec3<uint8_t>(static_cast<uint8_t>(std::max(T(0), std::floor(x))), static_cast<uint8_t>(std::max(T(0), std::floor(y))), static_cast<uint8_t>(std::max(T(0), std::floor(z))));
+    }
+    
+    Vec3<size_t> floorToT() const {
+        return Vec3<size_t>(static_cast<size_t>(std::max(T(0), std::floor(x))), static_cast<size_t>(std::max(T(0), std::floor(y))), static_cast<size_t>(std::max(T(0), std::floor(z))));
+    }
+
+    Vec3<float> toFloat() const {
+        return Vec3<float>(static_cast<float>(x), static_cast<float>(y), static_cast<float>(z));
+    }
+
+    Vec3<double> toDouble() const {
+        return Vec3<double>(static_cast<double>(x), static_cast<double>(y), static_cast<double>(z));
+    }
+    
     Vec3 ceil() const {
         return Vec3(std::ceil(x), std::ceil(y), std::ceil(z));
     }
@@ -217,23 +344,16 @@ public:
     }
     
     Vec3 clamp(const Vec3& minVal, const Vec3& maxVal) const {
-        return Vec3(
+        return this->max(minVal).min(maxVal);
-            std::clamp(x, minVal.x, maxVal.x),
-            std::clamp(y, minVal.y, maxVal.y),
-            std::clamp(z, minVal.z, maxVal.z)
-        );
     }
     
     Vec3 clamp(T minVal, T maxVal) const {
-        return Vec3(
+        return this->max(Vec3(minVal)).min(Vec3(maxVal));
-            std::clamp(x, minVal, maxVal),
-            std::clamp(y, minVal, maxVal),
-            std::clamp(z, minVal, maxVal)
-        );
     }
     
-    bool isZero(float epsilon = 1e-10f) const {
+    bool isZero() const {
-        return std::abs(x) < epsilon && std::abs(y) < epsilon && std::abs(z) < epsilon;
+        return length() < EPSILON;
+        //return std::abs(x) < epsilon && std::abs(y) < epsilon && std::abs(z) < epsilon;
     }
     
     bool equals(const Vec3& other, float epsilon = 1e-10f) const {
@@ -242,33 +362,28 @@ public:
                std::abs(z - other.z) < epsilon;
     }
     
-    // Template friend operators to allow different scalar types
+    friend Vec3<T> operator+(float scalar, const Vec3<T>& vec) {
-    template<typename S>
+        return Vec3<T>(static_cast<T>(scalar + vec.x), 
-    friend Vec3<T> operator+(S scalar, const Vec3<T>& vec) {
+                      static_cast<T>(scalar + vec.y), 
-        return Vec3<T>(static_cast<T>(scalar) + vec.x, 
+                      static_cast<T>(scalar + vec.z));
-                      static_cast<T>(scalar) + vec.y, 
-                      static_cast<T>(scalar) + vec.z);
     }
     
-    template<typename S>
+    friend Vec3<T> operator-(float scalar, const Vec3<T>& vec) {
-    friend Vec3<T> operator-(S scalar, const Vec3<T>& vec) {
+        return Vec3<T>(static_cast<T>(scalar - vec.x),
-        return Vec3<T>(static_cast<T>(scalar) - vec.x, 
+                      static_cast<T>(scalar - vec.y),
-                      static_cast<T>(scalar) - vec.y, 
+                      static_cast<T>(scalar - vec.z));
-                      static_cast<T>(scalar) - vec.z);
     }
     
-    template<typename S>
+    friend Vec3<T> operator*(float scalar, const Vec3<T>& vec) {
-    friend Vec3<T> operator*(S scalar, const Vec3<T>& vec) {
+        return Vec3<T>(static_cast<T>(scalar * vec.x), 
-        return Vec3<T>(static_cast<T>(scalar) * vec.x, 
+                      static_cast<T>(scalar * vec.y), 
-                      static_cast<T>(scalar) * vec.y, 
+                      static_cast<T>(scalar * vec.z));
-                      static_cast<T>(scalar) * vec.z);
     }
     
-    template<typename S>
+    friend Vec3<T> operator/(float scalar, const Vec3<T>& vec) {
-    friend Vec3<T> operator/(S scalar, const Vec3<T>& vec) {
+        return Vec3<T>(static_cast<T>(scalar / vec.x), 
-        return Vec3<T>(static_cast<T>(scalar) / vec.x, 
+                      static_cast<T>(scalar / vec.y), 
-                      static_cast<T>(scalar) / vec.y, 
+                      static_cast<T>(scalar / vec.z));
-                      static_cast<T>(scalar) / vec.z);
     }
 
     Vec3 reflect(const Vec3& normal) const {
@@ -276,37 +391,49 @@ public:
     }
     
     Vec3 lerp(const Vec3& other, T t) const {
-        t = std::clamp(t, 0.0f, 1.0f);
+        t = std::clamp(t, T(0), T(1));
         return *this + (other - *this) * t;
     }
     
-    Vec3 slerp(const Vec3& other, T t) const {
+    Vec3 fastLerp(const Vec3& other, T t) const {
-        t = std::clamp(t, 0.0f, 1.0f);
+        return *this + (other - *this) * t;
-        T dot = this->dot(other);
+    }
-        dot = std::clamp(dot, -1.0f, 1.0f);
 
-        T theta = std::acos(dot) * t;
+    Vec3 fmaLerp(const Vec3& other, T t) const {
-        Vec3 relative = other - *this * dot;
+        return Vec3(
+            std::fma(t, other.x - x, x),
+            std::fma(t, other.y - y, y),
+            std::fma(t, other.z - z, z)
+        );
+    }
+    
+    Vec3 slerp(const Vec3& other, T t) const {
+        t = std::clamp(t, T(0), T(1));
+        T dotVal = this->dot(other);
+        dotVal = std::clamp(dotVal, T(-1), T(1));
+        
+        T theta = std::acos(dotVal) * t;
+        Vec3 relative = other - *this * dotVal;
         relative = relative.normalized();
         
         return (*this * std::cos(theta)) + (relative * std::sin(theta));
     }
     
-    Vec3 rotateX(float angle) const {
+    Vec3 rotateX(T angle) const {
-        float cosA = std::cos(angle);
+        T cosA = std::cos(angle);
-        float sinA = std::sin(angle);
+        T sinA = std::sin(angle);
         return Vec3(x, y * cosA - z * sinA, y * sinA + z * cosA);
     }
     
-    Vec3 rotateY(float angle) const {
+    Vec3 rotateY(T angle) const {
-        float cosA = std::cos(angle);
+        T cosA = std::cos(angle);
-        float sinA = std::sin(angle);
+        T sinA = std::sin(angle);
         return Vec3(x * cosA + z * sinA, y, -x * sinA + z * cosA);
     }
     
-    Vec3 rotateZ(float angle) const {
+    Vec3 rotateZ(T angle) const {
-        float cosA = std::cos(angle);
+        T cosA = std::cos(angle);
-        float sinA = std::sin(angle);
+        T sinA = std::sin(angle);
         return Vec3(x * cosA - y * sinA, x * sinA + y * cosA, z);
     }
 
@@ -349,27 +476,35 @@ public:
         return (&x)[index];
     }
     
-    Vec3 safeInverse(float epsilon = 1e-10f) const {
+    Vec3 safeInverse() const {
         return Vec3(
-            1 / (std::abs(x) < epsilon ? std::copysign(epsilon, x) : x),
+            1 / (std::abs(x) < EPSILON ? std::copysign(EPSILON, x) : x),
-            1 / (std::abs(y) < epsilon ? std::copysign(epsilon, y) : y),
+            1 / (std::abs(y) < EPSILON ? std::copysign(EPSILON, y) : y),
-            1 / (std::abs(z) < epsilon ? std::copysign(epsilon, z) : z)
+            1 / (std::abs(z) < EPSILON ? std::copysign(EPSILON, z) : z)
         );
     }
 
     uint8_t calculateOctantMask() const {
         uint8_t mask = 0;
-        if (x > 0.0f) mask |= 1;
+        if (x > 0.f) mask |= 1;
-        if (y > 0.0f) mask |= 2;
+        if (y > 0.f) mask |= 2;
-        if (z > 0.0f) mask |= 4;
+        if (z > 0.f) mask |= 4;
         return mask;
     }
 
-    float maxComp() const { 
+    uint8_t calculateInvOctantMask() const {
+        uint8_t mask = 0;
+        if (x < 0.f) mask |= 1;
+        if (y < 0.f) mask |= 2;
+        if (z < 0.f) mask |= 4;
+        return mask;
+    }
+    
+    T maxComp() const { 
         return std::max({x, y, z}); 
     }
     
-    float minComp() const { 
+    T minComp() const { 
         return std::min({x, y, z}); 
     }
 
@@ -382,12 +517,82 @@ public:
             return std::hash<float>()(v.x) ^ (std::hash<float>()(v.y) << 1) ^ (std::hash<float>()(v.z) << 2);
         }
     };
+
+    Vec2<T> toLatLon() const {
+        T r = length();
+        if (r == T(0)) return Vec2<T>(0, 0);
+        T θ = std::acos(z / r);
+        T lat = static_cast<T>(M_PI/2.0) - θ;
+
+        T lon = std::atan2(y, x);
+        return Vec2<T>(lat, lon);
+    }
+
+    Vec2<T> toLatLon(const Vec3& center) const {
+        Vec3 relative = *this - center;
+        return relative.toLatLon();
+    }
+
+    T toElevation() const {
+        return length();
+    }
+
+    T toElevation(const Vec3& center) const {
+        return distance(center);
+    }
 };
 
+#ifdef __SSE__
+// SSE-optimized version for float types
+template<>
+inline Vec3<float> Vec3<float>::normalized() const {
+    float lenSq = lengthSquared();
+    if (lenSq > 0.0f) {
+        // Load vector into SSE register
+        __m128 vec = _mm_set_ps(0.0f, z, y, x);  // w=0, z, y, x
+        
+        // Fast inverse square root using SSE
+        __m128 lenSq128 = _mm_set1_ps(lenSq);
+        
+        // Quake III fast inverse sqrt SSE version
+        __m128 half = _mm_mul_ps(lenSq128, _mm_set1_ps(0.5f));
+        __m128 three = _mm_set1_ps(1.5f);
+        
+        __m128 y = lenSq128;
+        __m128i i = _mm_castps_si128(y);
+        i = _mm_sub_epi32(_mm_set1_epi32(0x5f3759df), 
+                          _mm_srai_epi32(i, 1));
+        y = _mm_castsi128_ps(i);
+        
+        y = _mm_mul_ps(y, _mm_sub_ps(three, _mm_mul_ps(half, _mm_mul_ps(y, y))));
+        
+        // Multiply vector by inverse length
+        __m128 invLen128 = y;
+        __m128 result = _mm_mul_ps(vec, invLen128);
+        
+        // Extract results
+        alignas(16) float resultArr[4];
+        _mm_store_ps(resultArr, result);
+        
+        return Vec3<float>(resultArr[0], resultArr[1], resultArr[2]);
+    }
+    return *this;
+};
+#endif
+
+//use a smaller format first instead of larger format.
+//#ifdef std::float16_t
+//using Vec3f = Vec3<std::float16_t>;
+//#else 
 using Vec3f = Vec3<float>;
+//#endif
 using Vec3d = Vec3<double>;
 using Vec3i = Vec3<int>;
+using Vec3i32 = Vec3<uint32_t>;
+using Vec3i8 = Vec3<int8_t>;
 using Vec3ui8 = Vec3<uint8_t>;
+using Vec3T = Vec3<size_t>;
+using Vec3b = Vec3<bool>;
 
 template<typename T>
 inline std::ostream& operator<<(std::ostream& os, const Vec3<T>& vec) {
@@ -404,4 +609,23 @@ namespace std {
     };
 }
 
+template<typename T>
+Vec3<T> max(Vec3<T> a, Vec3<T> b) {
+    return a.max(b);
+}
+
+template<typename T>
+Vec3<T> min(Vec3<T> a, Vec3<T> b) {
+    return a.min(b);
+}
+
+template<typename T>
+Vec3<T> mix(const Vec3<T>& a, const Vec3<T>& b, const Vec3<bool>& mask) {
+    return Vec3<T>(
+        mask.x ? b.x : a.x,
+        mask.y ? b.y : a.y,
+        mask.z ? b.z : a.z
+    );
+}
+
 #endif

util/voxelgrid.hpp

@@ -1,217 +0,0 @@
-#ifndef VOXEL_HPP
-#define VOXEL_HPP
-
-#include <vector>
-#include <cmath>
-#include <limits>
-#include <algorithm>
-#include <unordered_map>
-#include <cstdio>
-#include <cstring>
-#include <fstream>
-#include <iostream>
-#include <vector>
-#include <random>
-#include <functional>
-#include <tuple>
-#include "timing_decorator.hpp"
-#include "vec3.hpp"
-#include "vec4.hpp"
-
-class VoxelGrid {
-private:
-    std::unordered_map<Vec3, size_t> positionToIndex;
-    std::vector<Vec3> positions;
-    std::vector<Vec4> colors;
-    std::vector<int> layers;
-    
-    Vec3 gridSize;
-
-public:
-    Vec3 voxelSize;
-    
-    enum LayerType {
-        ATMOSPHERE = 0,
-        CRUST = 1,
-        MANTLE = 2,
-        OUTER_CORE = 3,
-        INNER_CORE = 4,
-        EMPTY = -1
-    };
-    
-    VoxelGrid(const Vec3& size, const Vec3& voxelSize = Vec3(1, 1, 1)) : gridSize(size), voxelSize(voxelSize) {}
-    
-    void addVoxel(const Vec3& position, const Vec4& color) {
-        Vec3 gridPos = worldToGrid(position);
-        
-        auto it = positionToIndex.find(gridPos);
-        if (it == positionToIndex.end()) {
-            size_t index = positions.size();
-            positions.push_back(gridPos);
-            colors.push_back(color);
-            layers.push_back(EMPTY);
-            positionToIndex[gridPos] = index;
-        } else {
-            colors[it->second] = color;
-        }
-    }
-    
-    void addVoxelWithLayer(const Vec3& position, const Vec4& color, int layer) {
-        Vec3 gridPos = worldToGrid(position);
-        
-        auto it = positionToIndex.find(gridPos);
-        if (it == positionToIndex.end()) {
-            size_t index = positions.size();
-            positions.push_back(gridPos);
-            colors.push_back(color);
-            layers.push_back(layer);
-            positionToIndex[gridPos] = index;
-        } else {
-            colors[it->second] = color;
-            layers[it->second] = layer;
-        }
-    }
-    
-    Vec4 getVoxel(const Vec3& position) const {
-        Vec3 gridPos = worldToGrid(position);
-        auto it = positionToIndex.find(gridPos);
-        if (it != positionToIndex.end()) {
-            return colors[it->second];
-        }
-        return Vec4(0, 0, 0, 0);
-    }
-    
-    int getVoxelLayer(const Vec3& position) const {
-        Vec3 gridPos = worldToGrid(position);
-        auto it = positionToIndex.find(gridPos);
-        if (it != positionToIndex.end()) {
-            return layers[it->second];
-        }
-        return EMPTY;
-    }
-    
-    bool isOccupied(const Vec3& position) const {
-        Vec3 gridPos = worldToGrid(position);
-        return positionToIndex.find(gridPos) != positionToIndex.end();
-    }
-    
-    Vec3 worldToGrid(const Vec3& worldPos) const {
-        return (worldPos / voxelSize).floor();
-    }
-    
-    Vec3 gridToWorld(const Vec3& gridPos) const {
-        return gridPos * voxelSize;
-    }
-    
-    const std::vector<Vec3>& getOccupiedPositions() const {
-        return positions;
-    }
-    
-    const std::vector<Vec4>& getColors() const {
-        return colors;
-    }
-    
-    const std::vector<int>& getLayers() const {
-        return layers;
-    }
-    
-    const std::unordered_map<Vec3, size_t>& getPositionToIndexMap() const {
-        return positionToIndex;
-    }
-    
-    const Vec3& getGridSize() const {
-        return gridSize;
-    }
-    
-    const Vec3& getVoxelSize() const {
-        return voxelSize;
-    }
-    
-    void clear() {
-        positions.clear();
-        colors.clear();
-        layers.clear();
-        positionToIndex.clear();
-    }
-    
-    void assignPlanetaryLayers(const Vec3& center = Vec3(0, 0, 0)) {
-        TIME_FUNCTION;
-        printf("Assigning planetary layers...\n");
-        
-        const float atmospherePercent = 0.05f;
-        const float crustPercent = 0.01f;
-        const float mantlePercent = 0.10f;
-        const float outerCorePercent = 0.42f;
-        const float innerCorePercent = 0.42f;
-        
-        float maxDistance = 0.0f;
-        for (const auto& pos : positions) {
-            Vec3 worldPos = gridToWorld(pos);
-            float distance = (worldPos - center).length();
-            maxDistance = std::max(maxDistance, distance);
-        }
-        
-        printf("Maximum distance from center: %.2f\n", maxDistance);
-        
-        const float atmosphereStart = maxDistance * (1.0f - atmospherePercent);
-        const float crustStart = maxDistance * (1.0f - atmospherePercent - crustPercent);
-        const float mantleStart = maxDistance * (1.0f - atmospherePercent - crustPercent - mantlePercent);
-        const float outerCoreStart = maxDistance * (1.0f - atmospherePercent - crustPercent - mantlePercent - outerCorePercent);
-        
-        printf("Layer boundaries:\n");
-        printf("  Atmosphere: %.2f to %.2f\n", atmosphereStart, maxDistance);
-        printf("  Crust: %.2f to %.2f\n", crustStart, atmosphereStart);
-        printf("  Mantle: %.2f to %.2f\n", mantleStart, crustStart);
-        printf("  Outer Core: %.2f to %.2f\n", outerCoreStart, mantleStart);
-        printf("  Inner Core: 0.00 to %.2f\n", outerCoreStart);
-        
-        int atmosphereCount = 0, crustCount = 0, mantleCount = 0, outerCoreCount = 0, innerCoreCount = 0;
-        
-        for (size_t i = 0; i < positions.size(); ++i) {
-            Vec3 worldPos = gridToWorld(positions[i]);
-            float distance = (worldPos - center).length();
-            
-            Vec4 layerColor;
-            int layerType;
-            
-            if (distance >= atmosphereStart) {
-                // Atmosphere - transparent blue
-                layerColor = Vec4(0.2f, 0.4f, 1.0f, 0.3f); // Semi-transparent blue
-                layerType = ATMOSPHERE;
-                atmosphereCount++;
-            } else if (distance >= crustStart) {
-                // Crust - light brown
-                layerColor = Vec4(0.8f, 0.7f, 0.5f, 1.0f); // Light brown
-                layerType = CRUST;
-                crustCount++;
-            } else if (distance >= mantleStart) {
-                // Mantle - reddish brown
-                layerColor = Vec4(0.7f, 0.3f, 0.2f, 1.0f); // Reddish brown
-                layerType = MANTLE;
-                mantleCount++;
-            } else if (distance >= outerCoreStart) {
-                // Outer Core - orange/yellow
-                layerColor = Vec4(1.0f, 0.6f, 0.2f, 1.0f); // Orange
-                layerType = OUTER_CORE;
-                outerCoreCount++;
-            } else {
-                // Inner Core - bright yellow
-                layerColor = Vec4(1.0f, 0.9f, 0.1f, 1.0f); // Bright yellow
-                layerType = INNER_CORE;
-                innerCoreCount++;
-            }
-            
-            colors[i] = layerColor;
-            layers[i] = layerType;
-        }
-        
-        printf("Layer distribution:\n");
-        printf("  Atmosphere: %d voxels (%.1f%%)\n", atmosphereCount, (atmosphereCount * 100.0f) / positions.size());
-        printf("  Crust: %d voxels (%.1f%%)\n", crustCount, (crustCount * 100.0f) / positions.size());
-        printf("  Mantle: %d voxels (%.1f%%)\n", mantleCount, (mantleCount * 100.0f) / positions.size());
-        printf("  Outer Core: %d voxels (%.1f%%)\n", outerCoreCount, (outerCoreCount * 100.0f) / positions.size());
-        printf("  Inner Core: %d voxels (%.1f%%)\n", innerCoreCount, (innerCoreCount * 100.0f) / positions.size());
-    }
-};
-
-#endif